Location is not entirely centric but not far from old town, about 20 min walk, however there is public transport and services such as uber for a ridiculously cheap fare (3/5 €).
The lady who received us was very friendly and nice. I got it wrong when booking and did just for 1 person, she agreed to accommodate de second and asked to came to the apartment to leave a second linen set. They were also available the most of the time for any query. The neighbours were as well very quiet and friendly, helped us opening the carpark gates. Definitely will be back to the same place when returning to Riga. 👍🏼