Have had the CMS predecessor for about 5 years with saw, router and jigsaw. I added a simple bit of mdf to some shelves so the modules will store and slide in and out - of course Festool sell their own module storage unit for $$$$$$$. OK so the table saw is not as powerful as my European slider, the router won't take 12mm bits (its the 1010 module I've got), the saw IS awkward to take in and out of the module (the old AF55) etc etc, but for the size, portability, accuracy, quality, design etc I'd buy the same again or the CMS to replace it without hesitation.
I often us the router table when I don't want to put the shaft for router bits on my shaper - I've even made a couple of hundred feet of skirting board with it.