This is a lovely, newer building with all the amenities you could want for a long or short stay. It's in a lively neighbourhood and within walking distance of Pike Place, the piers, SAM, etc. Lots of shops and restaurants nearby including the fantastic Macrina Bakery right next door.
The apartment itself is spacious, well appointed and has big, comfy bedrooms and beds. If you're a light sleeper, bring along earplugs for the Seattle sirens and folks who might be out on the street late at night.
We stayed in low season, so we felt the apartment was good value, and we split the cost 3 ways. If you're booking for your family in high season, it's going to cost you quite a bit, but you'll likely be glad you spent the $$$.