I spent one month at Daiga's apartment and I thoroughly enjoyed it. It is as sunny, clean and gracefully renovated as you see in the pictures. The location is great, not far from the Old Town and smack right in the middle of the City centre, where all the hippest and less touristy cafes and bars are (super alternative Chomsky bar is right next door).
Daiga wasn't in Latvia when I arrived, but her mother was there to greet me and, even though she didn't speak much english, it was pretty easy to figure everything out. Anyway Daiga was always readily available via phone, and she came to say hi as soon as she came back.
The house is really large and very quiet, wi-fi is very fast. I had a great time!