Very good, minor annoyances.
The product and styling are excellent and hopefully it all works. It was installed today and is heating up nicely so far so good. I self installed and ran into a couple of nit picky things… The screws for securing the heater are mediocre, stripped the head of one during install. The rawl plugs for drywall are way too long, probably designed for going into brick(?), so be aware if you are installing the top part in drywall. The port threads to install the electric heater showed a brown gunk that was relatively easily wiped off. Doesn’t seem like corrosion but maybe oxidized coolant? Other than that we are so far happy with our purchase and hope it brings many years of warm towels!