This is such a great product and if you struggle with doing crunches, then this is a great thing to get! It was very easy to use, and understand the instructions. I saw some reviews about it being hard to set up, the pins not working, but I don’t know what they are talking about. All you have to do is just pull on the pin and it comes right out, and to get it in, just push on it. You don’t even need to push that button that is on the pin. I also see reviews about no dvd, no work outs, but it shows some workouts you can do on the instruction sheet. I didn’t get a dvd like it said, but maybe the “dvd” is the other card that comes with this that says “bend. Simple, daily stretch routines” which is an app and this card gives you a 70% off with a referral code. But I don’t care about the dvd or that app, I am loving this product to even just do crunches with and that is the main reason I got it because I’m not good at crunches.