This stand is the best i've seen. I have just mounted my late 2013 VESA iMac to it, after upgrading my from late 2009. The stand is durable, it's a great way to keep things off of your desk. I didn't mind drilling at all as i will have the stand for many many years, and will continue to mount my computer in this way. A definite recommend if you want to clear things off of your desk. My country style desk can be repaired if i no longer want to have the mount, a little bit of liquid wood and sanding and my desk would be good as new.
I love this product. Has plenty of adjustments for me. Able to use my Retina screen alongside my 27" display. Bolted mine to a small moveable drawer stand from IKEA and use it for teleconferencing at my conference table too.