Has anybody used U S CAR TOOLS

I have talked to these guys thru email and phone. It was 6 months ago. I seem to remember it being fairly difficult to get ahold of someone. I must have called 3 or 4 times on separate days before I got a guy on the phone.. Email worked best and it took a few days to get a reply.. I get the impression they are a small operation and are busy so it takes a while to get thru to them.. Seemed like a friendly operation..