Let me start by saying that our host, Andris, was amazing. So helpful in many ways, and very concerned about our wellbeing.
He gave us tips on where we should go, where we shouldn't go, and where we HAD to go. In addition to our own itinerary, we followed his recommendations, which made our stay in Riga very fun and comfortable.
Since we arrived just after Christmas, Andris surprised us with gifts! Locally produced chocolate and sparkling wine. At new years eve, he came over to our apartment with even more gifts, to start the year in a generous manner. Wonderful!
The apartment was fresh and clean, with towels and sheets for everyone. No supplies were missing from the kitchen or bathroom, and I'm sure it would be hastily restocked if anything went out.
There was one big bed, which was great for sharing, one sofa that could be made into a double bed, and one armchair that turned into a single bed. The sofa and armchair was very easy to use so we stowed them away every morning and took them out when we came home in the evening, without any problems. There was however a slight difference in softness in the different parts of the sofa/armchair beds, so that the uppermost and lowermost parts of your body laid on a harder (and in my opinion more comfortable) mattress, and the middle part of your body laid softer. This could be a problem if you are a very sensitive sleeper, but it was definitely ok for us.
The rooms also looked slightly bigger at the website than they were, because of the pictures being taken with a fisheye lens, but I suspect that is the case for all airbnb photos, as well as real estate everywhere.
All in all, I would recommend you to stay at Andris place any day of the year! We will definitely come back next time we are in Riga!