The hotel is a cross between an Ibis and a Premmier Inn, it is a budget hotel but we couldn't find fault with it.
We stayed at the hotel for the Barcelona MotoGP weekend. Whilst its not exactly on the doorstep of the circuit, its a good enough location so long as you're not expecting party city at night although there are a variety of bars and restaurants in walking distance but they do close around 11pm.
Allow at least 1 hours travel time from the hotel to the circuit at Montmello. Train station is a 10 minute walk from the hotel and the trains are regular.
The hotel is located in a residential part of Mollet and most of the patrons are spanish (its definately not a tourist hot spot) however the staff in the hotel spoke very good english and couldn't do enough.
Hotel and rooms were clean and tidy with towels changed daily, there a no drawers (for your smalls) and only one little wardrobe - top tip: take some hangers with you.
Breakfast was continental with lots of choice. Free tea, coffee, hotel chocolate and juices from a machine in reception, available 24 hours a day.
The rooms on the top floor (4th) permit smoking.