I purchased the large heat mat. I have used it a couple of times so far. The only thing I found was the NZ power plug added on is rather loose and it doesn't work plugged directly into the wall.
Bit of a trial, but figured out how to use the Latex so that my mask would work best. Amazing to use, simple, dries fast and is very strong
Very impressed with the resin I get from this company, it works well and quite easy and simple to use. Totally recommend them.