Pretty much sucks. When I bought it, the requirements for wire gauge & breakers was listed lower on the website/manual, but upon delivery, the included instructions required MORE. I went w higher requirement but it caused a lot more work and pain. The unit does not provide continuous hot water. It gets really hot at first then randomly, maybe 30 seconds, maybe 5 minutes, gets cold. Then it never heats again until I turn the water completely off and back on. What a freaking pita. I'm overall disappointed w most of my vendor purchases and have tried to refrain from buying anything complicated or expensive. Even non complicated stuff like the chicken coop just sucks. And they never post negative reviews. Gth vevor.