Incredibly functional and honestly even slick for only two days of work and such a complex UI! I actually think I liked it better being dropped in and having to figure out how everything worked than if there had been a tutorial to hold my hand. I think a score system based on how good you were at the order of things would be a fun addition, and some industrial SFX as the tanks come in and the hoses and valves operate would be a nice touch if you keep working on it. But even just as it is it was fun to play around and make things happen!