Just to be upfront, and then go into details, the space is great! The staff were wonderfully pleasant and accomodating. The location is ideal. So, if in question, I urge you to book this stay :)
This accommodation was the second one I had booked in Prague. If I would have found it first, it probably would have been the only on I booked because the prior one was in a very central part of town which resulted in my mom and I getting very little sleep.
Check in time was 2:00 PM, and my check out time of my previous stay was at 11:00 AM. I headed to this accommodation to see if they were able to lock my luggage up till check in. The receptionist was very nice and offered my guest and I a coffee or soda. She showed us a map of what was around us and suggested a delicious Parisian style bakery/lunch place named PAUL.
I was supposed to be lodged at the Royal Court but when I arrived back for check in they told me that there was a problem with the water pipes and they didn't know when it would be resolved. The new apartment I would be staying in was a block away, which wasn't too bad. I had to catch an early train in the morning to Budapest and chose this accommodation because it was so close to a metro to Prague's main station. For this inconvience, they gave me a free bottle of Champagne :)
The manager took me over to the room personally. After I arrived, she informed me that there was no air conditioning, which honestly was a huge part of why I booked the night with them. The previous accommodation I had was loud, and stiflingly hot with no fan or anything to move the air around. They were able to provide me with a fan and a small reimbursement which was very accomodating.
The room was great. It was on the first floor, spacious, clean and completely comfortable. There was a washer, and a dryer in a style I had never seen before, a sort of electric run drying rack :)
The location was perfect for me since it was one to two blocks away from a major tram and metro line.
The bed was super comfy and all in all I had a great experience and would totally stay here again.
If I had known how nice it was before I booked my previous accomodation... I probably would have stayed here the whole time :)
Brownie points for having an instant book option.