Welcome to our forum.
For some reason i believe there are allot of dealers on this forum and they really dislike maax/ vita . Looked into all brands of tub. Wet tested lots as well. We bought a 480 maax last fall. Love it! No regrets!! Many ppl said insulated poor...... well i live in Canada and it preformed well!! Use it every day. Coldest day was -38c tub stayed nice and toasty!!