Nice apartment, clean, nice bathroom, well equipped kitchen in a fantastic location at the edge of the old town. The apartment has three double beds and a single bed, so sleeps seven persons. We stayed here with four persons and that worked really well.
The entire old town is within 10 to 12 minutes walking from the apartment. If you want to go to the new town (e.g. to see the gorgeous Art Nouveau-architecture in other areas of Riga), there are several public transport options within 5 minutes walking from the apartment. On top, for Dutch/Belgian norms, public transport is cheap in Riga.
Though the apartment is located in an area with pubs, restaurants and a nightclub, we did not experience any noisy nights (but to note: it was cold and rainy outside).
I recommend Imants' apartment in old Riga when you are visiting the city.