I am a huge Saw fan and I was so excited (and nervous) for this experience. I had a blast. The "victim" that gave us hints throughout the experience was fantastic, I believe her name was Shadow. Kudos to her for an amazing bloodcurdling scream when we failed the last room and walked out.
I was with a bunch of strangers and it was still fun. I would say go for the VIP/private experience if you have enough people in your group. I think that would make it even better.
If you are a fan of the movies you will love it because they have replicas of some of the traps from the movies and possibly some actual movie props. They did a great job recreating scenes from the films. I think you can still have fun if you aren't a fan of the movies but I would recommend at least watching the first one before you go.
I'm a big chicken and I was really nervous about jump scares. If you're concerned about this, don't stress. There were a few jump scares but not that many. My mom can't handle gore and she didn't go with me -- you can wait in the gift shop if you aren't going in. That being said, she could have handled it. There wasn't as much gore as I thought there would be, just a few intestine/meat props at the beginning. It's creepy but a lot of fun, definitely not too scary!
Like I said, if you're a fan of the movies, you'll love this! It's a must! Check Groupon before you buy your tickets. I recommend buying the merch package online with your tickets, saves money and you can pick any shirt and hat you want.