I'm currently using a mazzer mini that I borrowed from a friend, having had a rocky beforehand. There's no doubt in my mind that the mini produces sweeter, richer and longer extractions and is easier to dial in.
The dilemma for me at the moment is deciding whether or not to buy a dosered mini or a mini electronic. A while back I dialled in three mini electronics one after the other and was amazed that there was barely a stray bit of coffee on the bench. However, I have recently built a bench for my kit, including a built-in knockbox that the doser can sit over, so mess isn't really much of an issue any more. Given that with the doser I can grind whilst extracting and, so, deal with guests pretty efficiently, the smart money would save a few hundred and go with the doser.
Although I work on mazzers, so having the same adjustment mechanism at home is really easy to deal with, if I had the choice of any grinder, it would be the conical brasilia competition grinder. It has the most easy to use and accurate adjustment mechanism that I have ever seen, as well as grinding quickly and producing a fantastic cup. If only it weren't so messy ... guess that's almost always going to be the price of having a doserless grinder.
LMWDP #034 | 2011: Q Grader Exam, Brewer's Cup #3, Australian Cup Tasting #1