Ondrej was very welcoming, we had to meet him outside a house not far from the centre to collect the key. The apartment was small but had everything we needed and it was only 10-15 minutes from the centre via bus/metro.
Ondrej even provided us with a fan because it was so hot, we were very appreciative of this gesture. Because our departing train wasn't until late in the evening he let us check out late as no one was staying there that day. This saved us a lot of hassle.
Overall we had a brilliant stay in Prague!!