My partner & I spent 4 nights in the Hotel du Boulevard, it's in a great spot, close to the tube & railway stations. The "virtual" registration that takes place on the doorstep is fraught with issues, standing in the rain being told by the lady (however nice she was) she couldn't find your booking & then for her to forget you're stood there waiting in the rain wasn't an auspiscious start to our stay. Once we made it to the room, the beds were comfortable, the breakfast served in the patisserie across the road was great & typically swiss, We have little else positive to say. The carpet was mingin and the bathroom, although clean was dingey. The kitchenette was laughable & I wouldn't recommend preparing any food there. Inspite of it being a no smoking room, there was loose tabacco in the bedside cabinet. The WiFi wasn't working all the time we were there, reception told us they were waiting for a "part" but talking to other guests, this doesn't appear to be a new problem. We had come from Zurich & stayed in a vastly superior hotel for the same price, so this amplified our disappointment with the hotel.
This hotel is fine if you want to be close to public transport otherwise but there are other hotels around the station area that represent better value for money.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC