Played this through yesterday and today. It's pretty repetitive, but it's a whole bunch of bloody/gory fun. Great heavy metal soundtrack, and this may be the most mature game I've ever played next to Manhunt. Lots of F-bombs, and throughout each level you find pieces of pictures of Rick's girlfriend. Some are nice. Some are SLEAZY. Like topless sleazy.
I played it through on the normal setting, and some levels I had to replay a lot. The unusually long loading menu didn't help either.
As most everyone else has said here, it's a budget game. I got it for $30 as a Lightning Deal on Amazon a week ago and I'd say it's really worth the money.