You don't see many dobes around nowadays but that is a good thing - they were really overbred in the 70s. They are a lot of work - they tend to push boundaries (unlike say German Shepherds or other herders which are much more immediately biddable.) They want to please, but are also always thinking, too. You have to be able to be very consistent and put your foot down, and reel them in. I like to say, give an inch, they'll take 5 miles - especially the males.
They are so amazing though when you do put the work in. Silas is goofy, yet can be serious. He is very... earnest. He makes a lot of prolonged eye contact (which some people see in them as intimidating) and will often look at us with what we call "melt-face." He needs exercise but when he gets it he has a very solid off-switch. He will alert us to things going on in the yard, yet is also a registered therapy dog and loves working with little kids. Versatile.
There are "bad" dogs of every breed, but a Doberman with a proper temperament should not be aggressive or mean, despite the stereotype. Protective, yes. They'll bark, yes. But they should be able to discriminate what is a threat and what is not. People that really know them know that though most people see them as "mean" guard dogs, they are actually extremely affectionate and can be quite goofy.
The media gives them a very bad rap. That and stupid owners, and those who chain them outside. They are meant to be inside family dogs, not outside guard dogs.
I'd be happy to dork about Dobermans all day long with anyone who can tolerate it.
I also have about 9,782 photos to illustrate the conversation.