I hear that. I think self leveler is such a cool product. But the one time I installed it in a very small bathroom project, was one of the most stressful things I've ever done. I only needed three bags, but mixing the three bags and getting it poured and squeegeed out in the 10 minutes it takes to set up too much to level itself anymore was awful. In the end I did end up with one small section that wasn't perfectly level, but I was able to deal with that. I'll never do even a small pour on my own again, and I definitely won't do a big pour at all. I don't have that many competent friends.