I'm really happy with this standing desk converter--my husband put it together for me, and he was able to do it quickly and with ease (we didn't notice any misaligned screw holes). I've used it for a week now, and I'm finding it to be sturdy and easy to operate. It moves up and down quite smoothly. I have one in my office at work, but it's a VariDesk—that one is much, much heavier and takes up more space. I like the Bublitz better. The keyboard tray on the VariDesk slides in and out, and the one on the Bublitz does not. I haven't decided if that's a bother or not. I'm thinking I might prefer that it doesn't. Seems like I'm always having to fiddle with the VariDesk tray if I'm using it in a sitting position. My mousepad is one with the wrist rest, so it's a little cramped on the Bublitz, but it works fine. This was a great purchase. 10/10 would buy again.