We would definitely recommend this apartment if you are visiting Riga - The hosts were very accommodating and let us check in and out earlier/later than planned which was a big help for us as we had such a late flight back home.
The apartment was spotless and in such a great location! Just a few minutes walk and you are in the center of the Old Town. It was also very warm inside with constant hot water (a big deal when its -6 outside!)
The building itself is very old and has quite a few stairs to climb, this wasn't an issue for us but might be worth noting if you have mobility issues.
All in all we had an amazing trip and would definitely return and would use this lovely apartment again.