We (group of co-workers) went to Prague for a conference, and the apartment was a good choice for us (two bathrooms/toilets). We could walk to the conference center and to the old city center (~20 minutes). In general, there is a lot of car traffic (and some noise), and the area towards the conference center is not really optimized for walking. The place was clean, and communication with Miroslav was top notch. Nice vegetarian restaurant one block away, but only one very busy opportunity for coffee in the morning.
If I go back for a conference, I'd stay there again!