The nesting feature really isn't that bad to be honest... it needs a slight bit of work I'd say... but overall it works nice. The developer is russian... he's a good guy to work with if you have trouble, albeit a little limited in his English skills.
But the nesting is why I bought it. It allows page/material size... margin from edges and objects... allow inside etc. Some of the settings seem arbitrary and quite frankly I don't even have any idea what they do (the help file is quite limited)... but overall, for $50... it's hard to beat of you are looking for a decent nesting tool.
The other tools included... some of them are nice little tools, and can add a bit of functionality to Corel.
I personally don't think anyone would be disappointed spending the $50 on it... but thats just my opinion. I happen to like it, and use the nesting regularly.