Oh hi there! I actually kind of like the Ethanol Thruster :D
It's a fantastic early-game thruster. It just scales up, no need for throttle optimisation, and it's pretty zippy on small craft which is excellent for Ships of Fools. The big drawback is that Ethanol isn't exactly something that can be made in space, and that's actually why I made this tool, to find out how much Ethanol I needed on board for my travel to Gleba...