Well the first thing I should say is that this is a nice clean hotel and the staff are excellent I could have no major complaints about the actual hotel itself. The only thing that would put me off staying here again is the location, it's a bit out of the way on the Praga side of the river, it's about a 20min walk to the Old Town and good hike to central Warsaw which didn't bother me but generally if you stay here it will probably mean getting taxis at night and a lot of the drivers had trouble finding the hotel at night. If I was to do it again I think I would stay closer to the center somewhere like the Marriott but to be fair the Hetman is a great little hotel just the location is a pain. For those that like to dine in their hotel I should say the restaurant is fairly basic but the food is fine (I only ate there once though) but to say there is a bar in the hotel is stretching the truth a little, it's a counter with a fridge full of bottled beers behind it.
I had a double room to myself which came complete with a bathroom big enough to put my double bed in it was huge.