I purchased this model alongside the Iconx Peacock model, assuming I could get my bearings on the CN Tower before moving to the much more complicated Peacock. I ended up giving up on the CN Tower, I had an immensely difficult time forming the rounded portion of the top, and absolutely could not get the base together with the weird angles.
Still a phenomenal model, I'm entirely okay with having paid for it and ultimately breaking it, but I would suggest this one for those pros who have the proper forming tools. MetalEarth should reconsider its difficulty rating