Overall I had a pleasant stay here at Capital Suites Yellowknife. Not sure why there are so many negative reviews. The only issue I found was they do indeed need to soundproof the walls as you can hear a lot of noise from other nextdoor rooms/put in the hallway. However when I stayed I never had an issue when sleeping at night.
Yes, there are some interesting characters that hang around but I found them all over Yellowknife, not just at this hotel. I never felt unsafe. Staff were pleasant, facilities were okay. There are no dining options nearby but I was happy to take a short walk into town.
If you expect a 4 star hotel this is not it, but if you are happy with a budget hotel you should give it a go. I would stay again. Thank you.

There was no AC in the room and they provided a portable AC which kept turning off all night making it hot to sleep in. The service guy came and fixed it once at around 2:00 AM but it soon after went off again. Turn off and turn on, works and then goes off again. Also, the elevator was busy all the time with people coming down to smoke. The entrance area was always filled with people smoking making it very unpleasant. I guess you get what you pay for. The staff is great and very helpful but facility needs some updates.