Loved staying at Ondrej apt! Super close to everything we did in Prague. There were places to get food and groceries, a mall, and ATMs all very close by. The wife and I were staying here for over a week and found the apt very spacious and everything in working order.
If there was any downside, it would be that there were no washer/dryer for our clothes because as I mentioned, we were on vacation for quite sometime. This was not a very big deal as we were able to find laundry services near by (which meant we got to explore the city more).
Would definitely stay here again when returning to Prague and highly recommend!