The best saws and drills out there.
I've got the 12V C12 with 3Ah batteries, it is good for drilling into anything but the hardest masonry (where I use the SDS), but otherwise is used for everything else. The attachments supplied allow you to get into into many positions that other drills cannot.
Add in the quickly detachable drill and screwdriver chucks, which make it so easy to use.
Beware of what batteries are supplied with the pack, get the 3Ah upwards, the 1Ah are not too good - my battery can last a week, whereas my old 18V Bosch would need a recharge every day.
2nd hand value - I paid around ÂŁ360 for my first kit (new), used it for 3 years, put it on ebay, and got ÂŁ150 for it, there's not many drills hold their value as well.
They come with Insurance for a year when new, break it/have it stolen, then Festool will replace it all for ÂŁ100. (check that is still running, it was last year when I got a new one)