I stayed here for 6 nights on 2 occasions in Jan 2013 while on business. Its very conveniently located near the EU Institutions. The rooms are nicely presented with a useful work-space and free wifi. Bed was comfortable and spacious. Tea 'n' coffee facilities are provided in the rooms which have an iron and board. My room at the rear was very quiet.
The TV service was a bit patchy, switching itself off every now and then. The breakfast is just about adequate and is eaten in the large foyer area. The foyer area deserves some mention; it contains a bar, table football and pool table plus a large screen for playing Wii games - a bit like a youth club.
Aloft does not have a traditional room service. Sandwiches and the like are available for purchase in the foyer area at night. The self service check-out works very well.