We had a great time in Prague. The staff was always nice and helpful. The location was good (it took us about 10-15min to the old town by foot) and public Transport are always close. We had almost no problems with wifi, it worked sometimes a little bit slow in the evening when everyone used it ;)
A little note for people with feather allergy: we had down duvets and pillows. The cleanliness was okay and for the price Performance ratio good (40€/night doubleroom).