Very easy to put together.  Took me, a few hours.  I accidently put one thing on backwards (totally my fault) and it was easy to backtrack once I figured it out.  That added a little time.  I do recommend putting it together, like on a bed or a table, so you aren't bending over.  The top desk is two pieces, but it doesn't bother me at all.  I am an elbow leaner, so I've noticed it's a little more sharp than say my industrial stand-up that I've had at the office, so I actually found these little elbow pad things for your desk on that other online store, and they help a lot. but it's super nice and looks great in my "bedroom" office.  I got this desk at a sale price (I think) and it's so worth it.