Lenka's place is brilliant, I stayed with my brother & sister for a 4 night trip which was excellent. It's fairly central, only a 10 minute walk to the Old Town which was good. Everything was very clean and we had all the amenities we needed. Beds were comfy too which makes a nice change!
The only tiny downside is that it's right next some super busy main roads which are very noisy all night so if it's warm when you go and you want to sleep with the window open it may keep you up! Other than that there is nothing to fault, excellent place for an excellent price!