I have been on the patch for close to three years now and love it. I was on depo before but I spotted nonstop. I did have some trouble with the patch staying on when I first started them, but you just need to learn where to put it. (when your doctor gives you a prescription, ask for a emergency patch in case one falls off) I always put it on my shoulders (if you wear a lot of spaghetti straps this may be a problem) or I put it on my butt where my panties don't really rub against it.
As far as side effects, I haven't ever had any. I also love it because I can control when I want my period to start. I usually go six weeks (two months worth of patches) and then start my period. Or if I want to hold off on starting my period for a couple of days, I just leave the patch on an extra day or two. I always go six weeks (two months of patches) and then have my period. My doctor said this is perfectly fine. And my period have been a lot lighter and my cramps aren't as bad.
The downside is that they are very expensive if you don't have good prescription coverage. I pay around $42 every three weeks. (that's without prescription coverage).
Sorry this is so long, but I love the patch and hopefully it will be the right choice for you as well. Hope that helped!
Good luck!!