The location is right around the corner from a bus stop that can go to a nearby light rail station (to get to the airport) or Pike place. It's about 7-8 blocks from the Broadway area, which is a really nice area with good restaurants, bars, a nice park and thrift shops and alternative clothing stores. Very queer friendly.
Tri is very accommodating and responsive and offers a wonderful apartment. It's secure, though as it is at the top of 2 flights of stairs and at the end of the hallway, it's not very accessible if someone has a disability. This wasn't an issue for us, but I wanted to state it for anyone needing to know. The furniture is nice (Ikea) and functional. The apartment is simple and uncluttered, with plenty of space for storing luggage. The kitchen is tight, so maybe not best for someone who intends to do a lot of cooking, but perfectly fine for basic breakfasts or making coffee/tea or what have you. The couch is super comfy (pulls out), and I'm told the bed was good too.
The apartment is in a neighborhood with some life at night. Normal for a city (I think), especially on the weekends, but was a bit much for one of my more noise-sensitive friends. I slept through it. The nightlife is only a few blocks away, completely within walking distance at night.
Overall a great stay! Highly recommend.