This was a great place for a long-term stay (I was there for about six weeks). Kia was a great host, quickly responsive to messages, and stocked the loft with sundries, kitchen supplies, and other thoughtful touches. The unit is close to groceries, drug stores, coffee, and food, and only a short walk to downtown, Pike Place Market, the waterfront, etc. Also, the wifi is extremely fast.
There is a large homeless population in the surrounding areas, but this is Pioneer Square so that is to be expected. However, the immediate area around the loft building seemed fine.