I do like my truma, it's definitely easy/simple and the built in thermostat is much appreciated by the lady friend..I already have a diesel heater I rigged up in an action packer.
I just think I’d like the truma because it’s permanently mounted, and no fuel can to spill/smell
I run my cook stove off the same bottle so it is is one less thing to fill by comparison to diesel for me.
Never had a diesel heater to compare it to though and $2500 is a lotta money.