Works well. Less than 1 year old. So far, no issues. Endless hot water.

In thr winter the tankless doesn't seem capable of keeping up with daily showers. We get 15 seconds of freezing water on and off. Sometimes the unit will reset in the basement while I am covered in soap, unable to complete my shower.

They heat water efficiently only when needed. That’s great. Our only modest negatives are the short delays to get hot water to taps throughout house and modestly unsightly vent pipes through foundation.

We have had ours for six months. The best part is you never run out of hot water, but you only heat the amount of water you need. One caveat: it takes a minute for the heated water to arrive because it is not stored anywhere.

Hot Water when you want it. Had it for over 7 months. It works