Water softener quality is top-notch, as is the customer service from Lisa and Mike. Mike stopped by my house to help install the softener and was incredibly helpful, knowledgable, and professional. It's rare to find a contractor that possess all three qualities, and I cannot thank him - and Lisa - enough for their help.
As for the quality of the water softener itself, the machine has an excellent build with a fantastic warranty. Hopefully the softener lasts long enough that I don't have to replace it, but if I did I would definitely contact Purisoft again.
Thanks again for everything!