Weve been using it for about 5 years now. Maxjet seemed to be failing after about 3 years tho they "claim" theyve fixed the issue. Switched to Carbon about 2 years ago and has seemed to be doing ok. Maxcool is pretty solid have a had a few failures here and there. However recently they are having some issues with curling off the glass after install. Been contemplating switching to something else at least for our Ceramic line.