Really beautifully-decorated flat right in the middle of Riga. It is a 10-15 minute walk from almost anywhere in the centre. The apartment is spacious and well-appointed in a very Danish minimalism sort of way.
The host was very helpful, and provided a great list of restaurants in the room, which we used several times.
There is a pub on the ground floor, which can be a little bit noisy at night. (Not more than the traffic you'd hear on most roads in London). The next-door church means that you hear organ music in the afternoon, but really not a real problem.