I purchased this PC based EKG machine 2 months ago for my FAA medical examiner practice. I was apprehensive at first, worried that the software might not be user-friendly, or the device may be flimsy. In fact, the EKG device is wonderfully compact and easy to use, which at the same time the cords are high quality and sturdy. The software was extremely easy to load on my laptop, taking only a few minutes. It's even easier to use. A simple tutorial is even available on YouTube in video format. I'm very pleased with the product. For those of my customers who need an EKG, it generally takes less than ten minutes (extra time required only for hairy chests). The EKG captures in ten seconds, after which, with a few mouse clicks, I can save it as a PDF, which I can then send electronically to the FAA. No need for printing and scanning, no wasting of expensive EKG paper, no worries about printer malfunction. I love this little EKG machine, and highly recommend it to any and all practitioners who need a simple, portable, reliable option which offers the options of either printed EKG or direct transfer to electronic PDF file. And I should also point out that while deciding on this model, CardiacDirect provided me exceptional customer support (thank you, Evan Rockwell), describing different options, helping me understand their relative pros/cons, and even offering a helpful discount. I'm very impressed by both the company and the products I purchased. I highly recommend this online vendor, and this EKG device, to anyone reading this review.