Been having sex for nearly 30 years and at least 80% of that was using condoms. Had 2 break. One when i was a drunken inexperienced teen, and once just out of the blue (tho in retrospect, lack of lube was an issue). Both with GF's. Breakage should be really rare, like really rare. As for slippage, I just have found that the non latex are a little more prone. I think because 1. they are less elastic, so hug you less tightly and 2. They feel more like nothing, so you are less likely to notice slippage as you pull out. Never had it slip off during, only after and this is easy to prevent by grabbing the base on withdrawal. Never had a condom issue with a SP, always with GF's.