Finally something I might be able to help out with, I purchased my pool from Watsons in Indy, basically from what I can tell the mighty sun is just there "in house" brand name, my pool paperwork says mighty sun but the invoice actually indicates that the pool is an ASAHI EVEREST, which I googled and found to be a pretty decent pool (of course I had already purchased it) anyway, they seem to sell well made pools, only word of cautions are one, get the upgraded liner its WELL worth it compared to the standard cheap one, and two, try to stear clear of the auto clorinator unless you have a watsons near you to purchase the cartrige for it, im over 60 miles away and they never told me I could only get these at there store, of course like anything its a rebranded product and if I wanted to take the time I could probably figure out who "really" makes it but its really not worth it and much easier just keeping up with the bleach and other products then dealing with that thing anyway. All in all im on year 3 and the pool and its installation by watsons contractors where great.