I don't personally stay in many hotels, however for the money paid, this was okay at best.
Noise Insulation isn't great, you can hear what is happening outside of your room rather easily and it did disturb us a few times.
Bed Comfort wasn't fantastic, the mattresses are simple foam with a blue sheet over them, which you stick to if the weather is mildly warm. The actual pillow and blanket was rather disappointing. I did sustain some neck pain due to the very loose pillows. Normal beds that weren't bunks, were better. Same mattress, however, which especially did not help the heat that just swept over Hamburg that week.
For washing facilities, they're okay, however the shower felt rather unclean with a large amount of brown stains on the wall. The cubicle was also very cramped with very little room. Room Service did come by each day and provide new towels however, which was nice.
The room was adequately equipped with a table, chairs, and a TV, which comes in useful should you have something to plug in and watch, however with the room having capacity for 6 people, we were only provided 2 towels initially, and had to retrieve more from the reception desk. Windows only hinge open slightly, which can be a pain if you want a breeze to come through.
All in all, it's okay if you're not too fussy. If you're travelling alone or with one other, you'll be happy enough with what's provided, if you're coming in late and leaving early in the morning, and just need a quick stayover.