I've seen both of those and you do really need to switch off your brain to appreciate them. I've seen "Super Shark" as well. The highlight is a brawl between the shark - which can walk on land - and a walking tank.
Last film I watched: Dinocroc v Supergator
Two CGI reptiles stomp about Hawaii eating girls in bikinis. Then fight each other. Yes, it is as stupid as it sounds.