I purchased and have been using the Tranzendesk 55" Dueal Level Crank Standing Desk for about 7 months now. A standing desk was recommended to me by my physical therapist after I pulled a disc out in my back. I did not have any problems with shipping or putting it together. It works great and I still love it. The only problem is the keyboard sits on the desk and its too low to type. If the top shelf raised or lowered too it might make a difference. I have to use something to make the keyboard higher but it is floppy because of it. Really though that's my only complaint and I am sure eventually I'll find something to use that will make it more steady. This is a good company to deal with.