Does anyone have any first-person (i.e. from personal experience) recommendations for tankless water heaters?

Question:Am looking for best/most reliable brand on market. Thank you.

Answers:
Noritz is the cheapest around my parts but still a good brand. There's Rinnai and Takagi also which are a little more pricey. I believe Bradford White is making them now also which is the brand I sale for regular water heaters. Any of those brands are fine. I usually install Noritz but like I said, any of the above are fine. side note tho, if it's electric then you will not be saving money at all. The gas tankless heaters are the way to go so I dont know what application you have at your place now but I dont recommend getting an electric tankless because it uses so much electricity to run...good luck