Last time I went to House of Pizza was 10+ years ago, but my wife wanted to give it another try.
Very popular place with people waiting at the door and the wait staff was fast & courteous. My wife got pizza and I got chicken fettuccine alfredo where neither of us were impressed. It was OK, but nothing exceptional. You can get way better pizza & pasta going to Portofino's in the shopping center right behind House of Pizza in the same price range, but you always have to keep personal taste in mind.
A friend's wife only like Portofino's and loves House of Pizza going there regularly since she was a teen where House of Pizza has a huge nostalgia factor for many patrons.