For me, it was HIGHLY overated. I came on this forum hearing everyone say "BB5 is the best, it's awesome". So i decided to watch it. I got just after fight night...and realised how it just wasn't for me. I just couldn't get into it at all. I really don't understand why people loved it so much. Half the housemates were freaks (i know that people say BB7 was full of freaks, but BB5 was the biggest freak fest i've ever seen), it didn't seem very stable for a series, the security of the show was very bad and it was just...URGH.
I can understand why people would like it, but i really prefer BB7. It's just my opinion though