My transaction with Tankless Water Heater Depot went very smooth. I did originally order the wrong unit based on my needs, but Richard was very helpful in getting me on the right track. The customer service was excellent, and so is the Rheem Tankless water heater. I did notice a nice from on my energy consumption/bill. I also can enjoy an endless amount of hot water which is awesome. I decided to go tankless when my wife and I decided to have our first child. We new the water usage was going to go up and the current tank water heater wasn’t going to cut it. Overall we are extremely pleased with the purchase. Thanks again Richard R.