It took my husband and me longer than most of the reviews to put this together but it is so worth it to get it right and take your time.  We didn't have any trouble sliding the "glass" sections into the frame and it's so sturdy.  Stormed the whole weekend we were putting it together and it never waivered.

Pros: great value, just the right size for an amateur gardener
Cons: Paying extra for a green one