So (obviously) this is my opinion and based on my own lackluster skills but...
...I think the MC80 is a dud. It's died every time its hit the table, and that chops out a huge chunk of points I was spending in a vain attempt to make it viable. It hits no harder than a VSD out of those side arcs, has a huge base that is easily boxed in by GSDs and cookie cutter Demolishers and isn't fast enough to get out of trouble. FOR ME all of this results in a ship that's likely to spend more time gathering dust in my case than spending time on the field.
The cards that came with it are great (Except Cluster bombs. Really tired of dud cards in rebel ships, see Point Defense Reroute) and Admiral Ackbar is a beast...but overall I think the MC80 is a straight up miss. Too expensive to justify a ship that isn't fast enough or tough enough or hard hitting enough without expensive upgrades that make it worth even more points to your opponent when it inevitably goes down.