I, too have heard that they are the be all end all of mat cutters. I haven't laid my hands on one and happen to love my die hard old aluminum Fletchers, but the only other ones I've used are the little 30" tabletop Logan (a good small cutter) and a professional C&H (had a chip board base...prone to warpage).
Like DAP said, KEEP IT CLEAN (cover it with a dust cover when not in use), and wipe it down periodically and it will give you many years of good service.