I have had my Hot tub now for about a month, it is AWESOME!  The wait was awful, I ordered it 6 months ago, but I saved a bundle of money, everywhere else I saw it for purchase would have cost me $1000+ or more, so the wait was worth it in the end.   I had intended to upgrade to the 220V however, due to a shortage of components even though I have contacts at an electrical contractor it would still have cost me over $1700 in parts alone to get that set up, so I just went with the standard 110V.   And it has worked out ok.  I live in Colorado and it has been pretty cold and it heats up just fine.   It is my first time owning a hot tub so I struggle a bit with how to get the chemical balance just right but I am learning.    The size if perfect as I have it on an upstairs balcony, the weight was not a problem, we had to go up stairs and turn at a landing, it was a super tight fit but did it with 3 guys.   So far I love it and I recommend it to anyone