Hi Corey! The biggest problem for me is I set the bags on the grass and the grass grows up into the bag through the holes
Its not a big problem though, since all you have to do is move the bag and the grass gets pulled back out. If you are having problems with slugs try Safers Slug and Snail Bait. It works amazingly well at controling slugs and snails. When we moved here 3 years ago there was hundreds of slugs. I could pick them all out of the garden and then 5 minutes later it would be full of them again.....now there is almost none! I even through the bait into the back feild just incase they try to get close....