The location of Jeff's place is what makes it stand out the most to me. We were able to walk to everywhere we wanted to go (Pike Place, Space Needle, many different restaurants). It's literally next to an outstanding donut shop too. If location is important to you, I highly recommend this spot.
Jeff is also an amazing host and included a list of local places to eat at. Most of our dining choices were based on his list.
You really are in the middle of downtown so be aware it will be a little noisy from the cars/pedestrians. Jeff provides a fair warning of this though.