I agree w/Wildpony its a great supplement, but limited as a main design program. We use 7.5 on three machines so I dunno if the latest version has fixed some of the con's but yea...
Pro's (I've found): Vector welding (only rivaled by flash). Step and repeat is fantastic for ganging vector files with perfect distance, also useful in setting up multiple cut paths. Align, distribute, and snap-to tools are a step ahead of Illustrator and something Adobe should pick up on.
Con's: Limited capabilities with bitmap files. No tracing tools. Limited layer accessibility (forward one, back one, to front, to back... blah). Pantone color chart does not convert correctly (into Adobe) without changing color profile.
There are more pro's and con's but I use these daily. The program is well worth the $$ if your plotting, but for design and digital print production I'd stick with Adobe.