These are apartments, not hotel rooms. There is no reception, but check-in is totally painless, you just enter a code for a safe and get your key.
The room was large, surprisingly so. I would estimate perhaps 60 or 70 m², you could easily host a ten-person party here if you wanted to (except your neighbor would probably complain, as sound isolation is not 100%). It included a kitchenette and a small fridge.
The Wi-Fi is good but not fantastic (seemingly one AP per floor, connected to some DSL upstream, no IPv6). Some things are a bit worn; for instance, the elevator is intensely perfumed and sort of squeaky, and I've been in more comfortable hotel beds in my life. But at a price of €135 for two nights and a distinctly non-dodgy area, this is a great bargain; actually, it would be at even twice the price.