Stayed at Olga's for 5 days. Easy communication and check-in & out. A clean and warm apartment - actually 2 apartments with 4 beds, 2 kitchenettes, and 2 bathrooms - with a separate entrance from the street, which is handy when bringing your luggage in/out. All utilities (including washing machines) except maybe TV but once you got WiFi that's already everything. The parking spot is in a closed yard, no worries there either. The neighborhood is also quiet at night. A grocery store, like, steps away from the apartment door; the Old Town is a short ride away.
Can totally recommend as a place to stay in Riga for a family of 3-4.