I enjoyed my stay and gave it 5 stars. I would have given it 4.5 stars only because they don't use curtains on the beds to block out the stray light and noise of other guests. My bed was directly in front of the toilet and the shower (two separate rooms) and every time someone entered or exited either room the light would spill onto my bed and sometimes my face. A curtain would have blocked the light. I did inquire about curtains, asking if they use them on other rooms, but apparently it's just not something they do.
Other than that, check-in was easy and the place was clean. Nice vibe with a mellow common space, compared to another hostel around the corner that's attached to a bar and has a more lively environment; it simply depends on what you're looking for. The pictures of the hostel (online) are accurate and it really is a nice place to stay and hang out.
Overall I enjoyed my stay and would come back. However, it was about $10 (USD) more than the competition (per night) for the dates I needed, but the other place was sold out. Given the option, I would pick Generator as my second choice.