Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Seems like the quality is "hit or miss" on this radio!  Aref those of you who bought thru Amazon having issues, or just the buyers from China?
Document: I really like this radio. I wasn't expecting to, but I do. Mine had a couple of issues, such as the left VFO knob pushbutton being flaky, and the lack of any kind of mounting mechanism for the face, but nothing terribly serious.
The radio is great if you can get it to work, programing from the front panel is hit or miss, as for the software it's one step above pulling out your finger nails. there is not help files, not manual and getting help from the seller gets you the user manual not help. This radio is more for business then the Ham. On a scale of 1 to 10 on ease of use and programming it would get a 3.
Amazon delivered the radio, so I have absolutely no complaints about the seller. Very Happy!
Very nice radio - No programming software or cable included. I have tried several sources for this stuff and EVERYTHING has to be shipped from China. Don't get me wrong, I love the radio, just wish I didn't have to nickle and dime to get the supplies I need!
Not sure what all the complaining is about, but I really like this radio. I have only used it on 2 meters so far, but have gotten reports that it has exceptionally good audio. The receiver has good audio as well and I really like the detachable front feature! I have enjoyed the extended receive feature, and listened to local aircraft. The controls on the radio are logically laid out, and simple to use.
I have purchased TWO of these radios and had problems with BOTH! They seem nice, but programming is a nightmare! I even tried the USB cable and software, it still wouldn't function properly! I am so frustrated with these units! Now i'm waiting on TWO return claims from different sellers in china. PURE JUNK! Trust me, spend a little more and get a name brand radio from USA seller!
Audio quality on my transmissions have been very good according to other hams in the area. This is an excellent buy for the price! It even comes with Cross band repeat and a remote kit!
It worked great at 1200bps on 70cm.Anyway, here are a couple of things I would like to see on a future version:1) An access jack to get direct access to the exciter and discriminator for doing higher baud rates using a soundcard modem2) Mounting holes on the back of the face plate so that it can be panel-mounted or mounted on a gooseneck in the car or something3) For the love of Pete, TYT, put the schematics on the web or include them in the box!
Trust me if I could do it over again I'd buy a YAESU and be up and running. I bought two of these and I would return them but the seller will steal 20% of the sales price to take them back, I would think really hard before buying from this seller.
The receive seems to drift off frequency after a few minutes of switching on and no heat detected on the outside of the rig. This problem really shows up on the Air Band in the AM mode. I left it running on one of our 70cm repeaters that was FSD and came back 30 minutes later and it had dropped to half scale. I can't seem to fast scan on the mic buttons they only change 1 channel at a time which is a nuisance.
Answer: I haven't had any issues with this radio.  There is a little bit of a learning curve with it, but that's true of most radios nowadays.  It really is a pretty good radio for the money...