Anyone done BCN on vacation recently?

I found a note on mycrewguide saying we can get the crew hotel for 76 euro/night, but that was about a year ago...Anyone done this recently? What's the mechanism to book at this rate? Their website starts at 122/night.

Any other recommendations for the area? We're going to be flying in with 2 young kids (under 6) and then training over to France to meet some friends. I need a few ideas of how to entertain everyone for a few days in BCN - I'm thinking the beach but have never been over there.