I had two points that disappointed me.
1. I arrived WAW at 22:15, and tried to take the airpot shuttle for the hotel. The board of the airport shuttle bus stop read that It is scheduled until 23:00, running every 15 min. I waited for 40 min, and could not catch the bus. Although they say, "Call at the telephone# xxx, it is difficult to use a regular phone for foreigners. Eventually, I took taxi to be there. The hotel counter say it runs every 30 min. I think the updated information should be placed in the website.
2. I asked the front whether there are supermarkets/grocery stores around there, and they said, "No". But I could easily find two, within 10 min walk. The hotel is adjacent with the conference center, and they are expecting as many guests that stay within the hotel.
The hotel is new, clean, and comfortable, with a reasonable price, although the room was small.
In conclusion, I can recommend younger and experienced travelers.