Aigars is a brilliant host. He is very friendly, speaks good English, and he really couldn't have been more helpful. He picked us up from the airport and took us back there for our return flight, and he gave us lots of tips and advice about local restaurants, public transport, places of interest and so on. He even looked after our luggage for us on the last day as our flight was a late one.
We stayed in the apartment as a family of five - 4 adults and a teenager, and this was perfect for us, as we were out of the apartment most of the time sight-seeing, and eating out. If you are a larger group (4 or 5) and you want a place where you can hang out during the day, this might feel a bit small for you, but only if you all need private space, as the bedrooms are pretty small. If you are a sociable bunch it's perfect, and the big open plan living room and kitchen are genuinely sunlit, comfortable and spacious. It worked well for our family, and was really fantastic value for 5 people.
The stairs up to the apartment (100+) weren't a problem for us, but I wouldn't fancy carrying a tired toddler up all those stairs. That said, it is in a quiet, safe and secure building and I'm sure it would be fine to leave a pushchair on the ground floor, so you wouldn't be carrying that up as well.
It's in a good area, 15-20 minutes walk from Old Riga, with a bakery across the road, and there's a fabulous cafe in the lovely little park just round the corner. Potato pancakes for breakfast highly recommended.