My husband and I spent one night at Hotel HCC Montblanc in late November pre-cruise and one night after post-cruise. I would stay there again if I ever return to Barcelona (this was the third time I've been to Barcelona and my husband's first). The location is very convenient, located about a five minute walk to Placa de Cataluyna, which is where the Aerobus from Barcelona-El Prat airport drops and picks up from. It is also a block or two from Las Ramblas and close to the Gothic Quarter. It felt like a very safe location. The staff was friendly and even acknowledged our wedding anniversary with a bottle of sparkling wine which was above and beyond expectation. The first visit we paid about 135 Euros and for the second visit, paid about 110 Euros. I made both reservations in mid October directly on their website.
When we arrived for the first visit, we were able to get into our room right away, which was fantastic as we were jet-lagged from our overnight flight from the United States. On our second visit, we arrived very early after our cruise ended and even though our room wasn't ready (which is totally understandable), we were able to have our bags stored safely in a locked baggage storage room.
The first night we were there (a warm day in late November), we found the room to be hot. We opened the window and there was a lot of street noise, even for a Tuesday night. On our second visit on December 9th, we were given a room that overlooked the pool and that location, combined with not having to open our window, made for a much quieter night than the first visit.
The rooms are nice and clean. The beds are harder than I prefer but that seems to be pretty consistent in Europe. The towels were very luxurious, large and soft. The shower had a combination body wash/shampoo dispenser. There were English speaking channels on the television and the free wifi worked well.
We didn't purchase their breakfast, as there are many bakeries within a five minute walk. They also have a bar and a rooftop pool (open seasonally I would guess).