I had a bad experience several months ago. I ordered a solenoid expander board. It arrived. It didn't work. I emailed him, and after the initial response, crickets despite my follow up emails. I never got the board working or a replacement. I didn't spend enough to make a big deal out of it, but I'm not ordering from there again. It's too bad. I hope nothing is wrong, but at the same time, if nothing is wrong, I should have received better service.