I'm toying with the idea of getting a kit with the PDC Quadrill and the BHC, it's offered at slightly more than the PDC Set XL but you get 4x 4.2 ah batteries, which would make a nice cordless kit, I have the Carvex PSC 420, and later might get the TSC 55, then I'd almost have the whole18v cordless line in Festools! The BHC 18 seems quite slick, and when you need a hammer function why settle for anything less than a real hammer drill? The BHC also looks like it works fine with a forstner bit in softwood in the demo video I saw.. But mainly it just looks so awesome... I want it sort of. have used a lousy hammer drill for years, even for some paid work which means I'm just allergic to the horrible vibration/sound levels, so it seems spending a little more for the kit now solves my battery situation and gives me high quality hammer function straight away, The missing elements in the PDC (Angle chuck and the Depth stop) setup I can slowly upgrade to as the need arises. I'll probably get the Depth stop first..
Congrats on your new BHC 18 wolfdrill..