Hotels are quite expensive in Edinburgh so you don't get that much for the money. I'd say Cityroomz is a budget place when it comes to standard, but not when it comes to price. It was completely fine though and I enjoyed my stay. The place is quite dated but the rooms are nice and quite spacious. Wifi was good. The location was great! Bus from the airport stops literally just outside, and there are two supermarkets just nearby.
The only negative would be that the walls are very thin and that it took very long time to get hot water from the shower.