You'll get more than you can hope for the price. Clean room, noise-free, internet access in the room, AC, hot shower, TV... At ~30€/night, that's excellent quality/price ratio (many hostels with shared room and bathroom are way more expensive in Warsaw).
The only issue (and that's why I am removing one star) is location. The name says "centrum" but it is not that central. In the morning you'll have no problem but if you plan to return to the hotel a bit late (after dark), well good luck finding your way back. I personnally struggled getting back to the hotel every single night.
A quick note on staff, they may not be very "smiling" but they surely are helpful. I wouldn't ask for more.More
- Free Wifi