The heater is working well and I am happy with the purchase. Installation was a bit difficult due to documentation, but I got help from Facebook group for heaters. The build and parts appear to be good quality.
The only thing which was a surprise was that the capabilities of the controller were not mentioned anywhere, and i was surprised it did not support advanced mode, and I needed that capability. The pump makes a slight noise, but I think I have figured out how to reduce it.
I used the heater on 2 Ski trips in winter - it was 29-30F outside, and 75F inside my SUV-Camper. The heater is made it possible for me to enjoy Sking with my camper without having to stay in expensive hotels.