Nice apartment inside, which is nice. Renovated apartment.
However, be mindful that it is a VERY old and sketchy building. You get in it the building, it feels super weird. When my girlfriend and I arrived we were quite unpleasantly surprised by how rundown the building looked. Be mindful of that. Inside the apartment it's fine though.
The bed is very thin and you can feel the springs though so I would recommend changing the mattress. The rest in the apartment was fine. Quite handy appliances (washer, etc). Missing a drying rack to hang the clothes. No central heating or ventilation heating, just 2 electric portable radiators (they do the job though).
The price was OK for what we got, nothing crazy.
If you are going alone to Riga and want a decent place, it's fine. If you're going with family or girlfriend, be mindful that the building is really sketchy