VIVO Electric Stand Up Desk Frame Single Motor Standing Height Adjustable

In my first few days of use, it's a great desk frame, very sturdy, very quiet, more than enough to hold a 60x24 surface and all my work equipment. The assembly was straightforward as well. The only issue was when I first received it and had partially assembled it, I realize there was no way this frame was going lower than 28in (floor to top of frame including feet) as opposed to the 24.5in in the specs, and it was a 2-tier instead of a 3-tier leg system. I contacted Customer Support and they were great. No hassle. I provided with a picture of a measuring tape showing the minimum height and they figured out that I was sent an older REVISION of the same model which they have improved. The older revision is a 2-tier than only goes to 28in minimum, while the newer revision is a 3-tier that goes down to 24.5in. So they sent me a replacement overnight and provided a UPS pick-up for the one they had originally sent me. There's no way (I saw) to specify the revision when you order, so it might be good to immediately follow-up by contacting them to make sure they get you the right revision, or call them to place your order. They are really responsive and helpful, which is encouraging since it seems they will honor their 3 year warranty if something comes up at some point.