We stayed at Sergey's apartment for a girls trip to Riga and could not have been any happier - the location of the apartment is great, directly in the citycenter, and there is lots of space and even a comfy kitchen for breakfasts :) We also used the taxi service quite a lot - it's a bit more expensive than the usual taxis (15 eur vs. 12 eur), but it saves a lot of trouble, especially if it's your first time in Riga!
Thanks for the stay, Sergey!