My partner and I stayed in Ishin's place for 9 weeks while working remotely.
Pros:
Ishin worked with us quickly and gave us a significant discount after our original host cancelled a 10-week stay 9 days before it started.
Ishin was very responsive and sent someone to address any problems within 24-48 hours. Valentino, who helps Ishin manage the building, was extremely kind and helpful.
The location was incredible. Right next to the park/lake. It was easy to take the 22 or 36 bus downtown or up to Wrigleyville. Lots of restaurants and bars within a mile radius in Lincoln Park and Old town.
The WiFi worked well for two people working from the apartment
Cons:
The apartment wasn't very clean when we arrived. It either hadn't been swept or dirt/debris had just been swept into the corners of the apartment. There were also some holes in the wall, the towel rack in the bathroom was falling out, and the shower wasn't sealed, causing leaks. Valentino came to fix all of these things within a couple days.
A bit low on cooking supplies/essentials. There is also no kitchen table to eat at.
The apartment building is on the older side, which caused a couple of issues. The front door of the unit wouldn't close properly for a while. (Valentino came to fix this). As another guest noted, using two kitchen appliances at the same time causes a fuse to blow. You can hear people walking and talking above you consistently, all the units in the building are Airbnbs so there are a lot of people moving in and out. Naturally some neighbors are louder than others.