TLDR:
A great value for price apartment! The host is OK, but can get rude and unpleasant if you don't explain to him that you don't sleep with your mother since 30 years.
The location is stunning - you can't be more "centeral" to the old town of Riga. There's a great tea and hookah bar right at the doorstep, a McDonald's is right behind a corner if you want to grab an early coffee or mcMuffin.
The appt is located in an old tenement, but the flat itself is fairly fresh - certainly not a brand and shiny hotel room, but decent enough not to bother. The double-bed is good, comfortable and wide enough to fit 2 big adults. The sofa is somewhat old, but would probably also work as a bed. The bathroom could use a break and be refreshed.
We did have one issue with the flat, though...
The host provided sheets and bedding for the double bed, as well as towels for both me and my mom, whom I traveled with. Unfortunately we could not get an additional bed sheet so to sleep separately (mind, I am 35 years old, and don't sleep with my mom any more). As it turned out, the host lives very far away from the appt and refused to come and bring the missing sheet. The discussion got pretty tense and eventually had to get airbnb involved to resolve the dispute. On several occasions the host was insinuating that I am lying both about my mom and the number of people staying in the flat.
Otherwise we had no issues with the stay.