I've been using Sisser HT vinyl for over a year now.. even on people's work shirts who abuse the heck out of them. I have not had any problems with the product. I did notice on a couple garments like a fleece sweater, thing hoodie, etc... that on the thin part or little pieces it will break. Small lettering, etc. I have not had any problems with the vinyl coming off, fading, cracking, or whatever. I'm the worst too, I never turn my shirts inside out and I always dry very hot. I'm my own worst enemy. I just got the OKI c831-ts this week. I'll be doing tests on it now. I'm not expecting it to hold up like the vinyl though.