Chinese version below (底下有中文版本）
I stayed at Jindan's listing from October 2020 to April 2021.
TLDR: Communicating with Jindan is a nightmare, listing says no cigarette smoking indoors but there is frequently some cigarette smoke in the room I booked even with all windows and doors closed. I would only recommend booking with Jindan if you can get a large discount and you are willing to take care of problems that you should not have to as an airbnb guest. Details are as follows:
How Jindan handled requests to extend:
I did not book my approximate 6 month stay all at once, I would renew approximately once per month with Jindan. The first time I messaged him to renew, he asked me if I could do it through AirBnB (this first occurred December 6, 2020). I told him I could not (because we had negotiated a rate, and I could not specify the rate through the app). Essentially each time I asked to renew again, he would ask me to do it on my end, and I would have to tell him that I was unable to do it. By Feb 2021, this had occurred several times. I asked for another renewal, and Jindan of course again asked me to do it myself (which I could not.) At this point, rather than do it himself, Jindan asked his helper in the unit to talk to me and have me do it. I showed his helper my two phone's AirBnB apps (one in Chinese and one in English) and told her she was more than welcome to get the booking done on my phone. The helper had no clue what she was doing and was unable to extend on my end. On March 8 2021 (my final extension), I again asked Jindan to renew. Rather than take care of it on his end, he yet again asked me "Can you make inquiry?". Again I told him he would have to do it. Rather than do it himself, he again asked his helper to find me again. The helper again looked at my phone, and had 0 clue what she was doing, clearly had no updated knowledge from last time whatsoever, and was unable to extend.
How Jindan handled issues:
(the listing specified no smoking in the house).
Dec 12, 2020: I returned to my room to find it reeked of cigarette smoke. At the time I left, I shut my door and all windows I informed the on site helper, who said I should message Jindan. I messaged Jindan on AirBnB on Dec 12, 2020 at 8:59AM and informed him of this situation. Jindan never responded in any way.
Dec 17, 2020: I messaged Jindan at 12:39AM on AirBnB that the internet had gone out, and that I had attempted to restart the modem without it fixing it. Jindan never responded in any way.
March 22, 2021: A person who was either not right in the head or was trolling had recently moved into the room adjacent to mine, I'm going to call him "Mr Troll". Soon after moving in, he accused multiple other people in the house of infringing on his rights. He claimed that I and Jindan's helper had broken into his room, stolen his sunglasses, and keyed his belongings. He said that I had threatened to beat him up The helper said that he had accused the helper of breaking his car's engine. Mr Troll called the police, who came. The police I talked to said that nothing Mr Troll said made any sense, took my ID, and just left. (I had basically no contact with Mr Troll or his stuff). Ever since moving in, the lock on my door had been broken. Although one could technically argue that it locked, the doorknob was hanging half out of the door. You could see the insides of the lock.
At 8:49 PM I messaged Jindan: "Hi. A new person just moved in next door. Tonight he says that I went into his room and stole his sunglasses and keyed his stuff. He was pointing his phone looks like he was taking video of my while accusing me of this. I didn't do any of that. The lock on my room is messed up, it's half hanging out. For my safety, would you be able to replace it immediately (tomorrow)?"
Jindan: My sister ordered it
Me: When is it coming?
Me: Could you confirm it'll be changed tomorrow?
Jindan did not respond anymore. I also informed his helper that I wanted it changed the next day, and specifically said I did not want to wait several days for an online order. Nontheless, the only thing that was done was an online order of a lock that would take several days to arrive.
The following day I spoke again with the helper, and insisted it be changed that day. The helper got me on the phone with Jindan, who actually told me on the phone that I could go to Home Depot and buy a lock.
After I messaged customer service and explained the situation and demanded it be changed, Jindan changed it.
March 31, 2021 (approximately):
When I ask for a lock change, Jindan takes his time, but when Jindan wants someone to make a statement for him, he wants it done immediately. He wanted a statement from me and he asked his helper to knock on my door and have me come out and talk on the phone. He did not send me any messages on AirBnB, and I never got any message from customer service about needing a statement.
Cigarette smell:
There was often a strong cigarette smell in the hallways, as well as in my room (I believe it came through the air vents). This is despite the listing saying no cigarette smoking in the house.
我从2020年10月到2021年4日在Jindan的房子住了。
长话短说：跟Jindan交流是个噩梦，房源说不能在屋内抽烟但即使我吧窗户和门都关了，常常有抽烟的味道。除非打大折以及你愿意自己解决爱彼迎客户不应该需要解决的问题，我不建议你住Jindan的家。细节如下
Jindan怎么处理续房请求：
我没有一次订了6个月。我大概每月会问Jindan可不可以续。第一次他问了我能不能用爱彼迎续（第一次2020年12月6日）。我跟他说我不能（因为我们讨价还价了，我没法在软件里设定价格）。几乎每次我问他可不可以续，他会告诉我在我这边做，我也得告诉他我做不到。到了2021年2月，这已经发生了几次，我再次问了他可不可以续，Jindan自然要我自己去做（我做不到）。这次，他Jindan没有去自己所，而是选择想他的在我这的助理跟我说话让我做。 我给他的助理看我两台手机的爱彼迎的软件（一个中文版本，一个英语版本），我告诉了助理她可以在我手机上做。助理一窍不通也没法续。2021年3月8日（我最后一次续的时候），我再次问了Jindan可不可以续。他没有自己去解决，而再次问了我”你能不能询问“。我再次高所了他他需要自己做。他没有选择自己做，而是再次问了他的助理来找我。助理再次看了我的手机，依然一无所知，没能续。
Jindan怎么解决问题：
（房源说不能在家里抽烟）
2020年12月12日：我回到了我的房间发现了满屋抽烟味道。我离开时，关闭了所有的窗户和门。我通知了现场助理， 她说我该给Jindan发消息。我2020年12月12日 早上8:59 给Jindan发了消息，告诉了他什么发生了。Jindan一直没回答。
2020年12月17日：我在爱彼迎上告诉了Jindan网络断了，我试图了重启Modem但修好。Jindan一直没回答。
2021年3月22日：最近一个要么脑子有问题要么想闹事搬进旁边的屋子。我就称他为”戏精先生“。搬进来不过多长时间，他指控其他住那的人，说他们侵犯了他的权利。他说我和Jindan的助理进了他的屋子，偷了他的墨镜，用了钥匙刮了他的东西。他说我跟他说我会殴打他。助理也说了他说助理搞坏了他的汽车引擎。戏精先生给警察打了电话，警察来了。和我说话的警察说了戏精先生在胡说，看了我的身份证，走了 （我几乎没有和戏精先生有交流，没碰她的东西）。自从我搬进来，我的门锁坏了。理论上可以说可以锁门，但门锁从门非常松脱，能看见门锁里面的内部。
晚上8:49：我给Jindan发了消息：”嗨。新人刚搬进隔壁。今晚他说我进了他的屋子，偷了他的墨镜，用钥匙刮了他的东西。他在用手机指向我，好像在边拍照边指控我。我没有做这些事。我的门锁脱落了，坏了。为了我的安全，可以立即换吗（明天）？“
Jindan: 我姐订了
我：什么时候来
我：可以确认明天换吗？
Jindan不回答了。我也告诉了他的助理我想明天换， 我明确的说我不想等几天网购的门锁来才换，但唯一做到的事就是网购了个几天后才会到的门锁。