I don't have any complaints, have quite a few on service and have had very few problems. Tech support has been good but I've only had to call a handful of times. They have an oriental guy (I forgot his name) that I've talked to a few times for trouble shooting and he's very good at identifying problems and working through them quickly. I'd definitely recommend downloading the HEX pdf if you don't already have it as it can save you some time. Overall functionality seems good, I like the prints as well. I'm also only familiar with their hydro controllers just fyi.