We really enjoyed this apartment during our 3-day visit to Seattle.
The location was ideal, as it is walking distance from the Pike Place, Space Needle, the Great Wheel and many restaurants and bars.
The included parking space is a big plus, considering how much hotels charge for parking in the area ($40+ / day). As others already stated, you might have a hard time in the parking lot with anything larger than a full size car, but it's still doable.
The apartment has all the basic stuff you will need, including a portable A/C and a tower fan. The host has great communication, and we were provided with all the details we needed.
This was our first use of airbnb, and it turned out great.