Tankless Hot Water Heater

we have a rheem and have had nothing but problems after the first 2 years or so with the electronics. keeps giving us a gas flow code. wife has about been in tears a couple times trying to get it to work taking a shower, and she wants it gone. dont know if i am gonna pull it yet or not. but i wouldnt recomend the home depot top of the line rheem we have. i think it was $999 back when we got it. plus a 300$ exhaust kit.