You will be unable to sleep if you get the room next to the common area. Otherwise hostel is ok.
To give some background story, me and 3 coworkers were coming to Chicago for a conference. I booked a room at this hostel last minute because our original airbnb cancelled. The room is small but okay as it has AC and we'll be at the conference during the day anyways. Our problem is that we need to sleep relatively early but our room is right next to the common area. There's a pool table, tv, and kitchenette. And there's usually a group of around 10 kids drinking, playing music and hanging out. Our group is 28-32 years old so it's not like we're middle aged but we still need to sleep relatively early to wake up for our conference. We're ok with some noise but every night someone had their portable bose speakers and were blasting music. Quiet hours start at midnight so there's no way you'll sleep before midnight. It also doesn't mean they'll actually be quiet at midnight. The first night, the staff had to come down to ask people to leave. The second night, my friend had to ask them to turn down the music at 11:30pm and remind them that quiet hours were at midnight. Finally past midnight, they were still being extremely loud and I had to go and almost yell at them to leave so that we could get some sleep. I talked to the staff (Tez) who said it's tough because he is often busy. He's a nice guy and I get that it's busy, but I still don't think the guest has to be the one to kick people out of the common area for quiet hours. So after two nights of this, we asked them to move us to another room and it was much better.
Other than the placement of our room, the hostel is ok and the staff is very nice. Most people staying are on the younger side 18-22years old. So if you're in town to vacation and hang out, it's cool. If you're there for anything business related, then I'd look elsewhere. I understand it's a hostel and it's not going to be quiet but based on my experience the first two nights I'd give it a one or two stars. Based on the staff and the experience once our room was moved I'd give it 4 stars. So overall gave it a 3.