Ordered a U59 4 months ago; no issues; a great little PC - stable and quiet.  Added a 2 TB WD HD after checking on compatibility.  Then more customer support, asking about running it on a maybe-not-so-pure-sine-wave 12-to-120 VAC inverter in my camping trailer (not advised), then through an 8-40-VDC-to-12VDC regulated converter (sounded good), then asked about the power cable "barrel-and-pin" connector dimensions so could solder up a new power cable to run off of the DC-to-DC converter - don't want to cut the connector off of the original power supply cable since might want to use it on 120 VAC later.  Seller is sending a new power supply/cable/connector for me to use when making a new 12VDC cable.  Talk about exemplary customer support.  I can imagine other sellers not even responding to such inquiries, much less answering the questions, much less offering to send a cable that they really had no obligation to provide.  Hats off to these guys...