I have amtico in our dining room and it's been fine with the steam mop. I do try not to leave it in one place for too long, as I think the little & often approach is less likely to cause melting, but as I can no longer physically get down on my hands and knees (& I don't have a normal mop!), it's better that it gets clean. Still looks fine (if a bit old/scratched...it needs that resurfacing thing doing to it) to me.
Mummy to Twink - 8/05/08, Squishy - 7/02/10 & Flopsy 1/11/12