My wife and I spent about a week here and it's pretty nicely situated between the Space Needle and Pike Place Market. Easy walk to either. Plenty of eating options readily available and a few different convenience/pharmacy/small grocery stores.
The apartment was clean and comfortable. The bed was comfy. Unsurprisingly (other than not being mentioned in the description), the pool and hot tub were closed due to COVID restrictions.
It's up on the seventh floor, so you're pretty well removed from the street. Belltown does sometimes provide the opportunity to see the results of addiction. While walking around I witnessed a brief discrepancy about the number of crack rocks received vs. expected. This isn't super pervasive (or limited to Belltown), but it is there.
We did some remote work and the Internet isn't super fast, but fast enough for both of us to be in zoom meetings at the same time without issues. It did however drop randomly 1-2 times a day and we had to restart the router to get it back. I reported the drops when we left and they said they took care of it, so maybe it's fixed...
Overall, we had a very nice, relaxing, comfortable stay.