My doberman, Apollo is almost two years old. The are great family dogs. They will be very protective of your entire family, not just one person.
They are very clean, the do shed but their hair is very fine/small. Dobermans (well, mine) hates to be left outside.. Their thin coat doesn't help much in cooler climates..
Like all puppies, they will chew your stuff up if you don't keep an eye on them while they are teething.. this will last for a year or so.. An old couch became a victim one afternoon while we were out.. nothing but white cotton fluff all over the house when we got home.
Make sure you get one with the tail docked. I've been around other Doberman's with their tail still intact and it's lethal to small kids, cups of hot coffee, ect..
Apollo's ears are cropped, but that is a personal preference. I think dobermans look outstanding either way. If you choose to go for the cropped look, make sure the breeder has this taken care of for you by a reputable vet. (IE, someone who specializes in it) We purchased Apollo from a breader in Santa Clara, CA - she had him brought all of the way up to Oakland (about 40-50miles) to a doberman specialist to have the ears cropped. We had to wait 2 weeks before the breeder would let us take him home afterwards. You will be repsonsible for changing the dressings and posts (the ears have to be trained to stand up) for the next 3-6 months. It will seem like a pain in the ass, but the results are awesome.
-Niel