Stayed in a 2 bedroom suite with my husband for a week. Really nice accommodations, free internet in the suite, excellent breakfast included in the price, super-helpful staff and free parking for visitors, convenient location. We had no complaints with our stay and would go back again and again.

Hotel is in great location (just like most all of the reviewers have said!). The decor is much nicer than any other Residence Inn I've ever stayed. We had a room on the 6th floor with a large balcony overlooking Lake Union, unbelievable view! The room was so spacious with 2 large bedrooms, 2 baths, kitchen, dining and living areas. Three nice large (new) TVs.
The free breakfast was a nice amenity and tasted good.
Overall, we found the emps to be very helpful and friendly with one exception (Whitney).
They use a car service called Cameo Town Car that we used quite a bit to get to and from the airport as well as to the wharfs and other attractions. They were extremely reliable and reasonable.
Overall, it might be the best place in town to stay (as long as you can get the lake view!)

The suites in the Residence Inn were newly renovated, spacious, comfortable and clean. The hotel has a huge lobby which is nice for just hanging out in. I had all of my wedding guests stay in the hotel and everyone loved it. The location is nice because it is right on the bus line and streetcar line and minutes from downtown Seattle without being right in the middle of the busy downtown. It is also right next Lake Union and half the rooms have a great view. The breakfast was good but not great - I have liked the breakfast at Embassy Suites more. The staff was okay, not the friendliest ever, but they did do everything that was asked of them. Parking is $19/day which is expensive, but not for Seattle. Other downtown hotels charge $40/night. There are also restaurants right across the street so you don't need to drive anywhere to eat.

Stayed in early June with 3 small children.

The hotel is in a good location directly across from Lake Union, a small park is across the street and a boardwalk around the Marina is a good distraction for kids to release some energy.
Seattle Center is a short 15 mintue walk although be careful of which route you take, some roads have small sides walks with heavy traffic.
Easy access to I-5 to get to other sites in the area.
Breakfast was average but what can you expect for free!
Indoor pool was a little small but the kids had a great time.
Rooms were very nice as the hotel was recently renovated, staff was helpful with basic information but did lack more detailed information about things to do.
3 sit down restaurants across the street (Hooter's, Joey's and Daniel's Broiler) nice for adults but not that appropriate for kids and there are few other kid friendly restaurants close (not that I could find). No hotel bar or restaurant on site.
Parking is $19/day and you have no options close by.
I would recommend the hotel especially with kids.