It once together is ok, sturdy… but the instructions are awful and the pieces are not marked. The instructions are put together in a very haphazard way and even though we meticulously followed which parts to use, we were 3 screws short in total! Even though we have used every part.

BTW, we bought two of these units so have had to put two together.
1st one took 4.5hrs, 2nd 3hrs but without all the parts on both, so we did have to pop out and refill. 

In the future I will pay more attention to the reviews and probably find a different unit with better reviews around the assembly.