I have Dobermans. We've always had them. The breed has certain characteristics that are common to all of them in my experience - they are velcro dogs and need to be at your side at all times. They don't like to be left alone, they need a really strong bond with their people. I've never had a Dobe who only bonds to one member of the family, mine have been fine right through me being a child, being single, just me and him, to meeting my husband, having a first and a second baby (not all the same dog, btw, because they're unfortunately not long lived).
As others have mentioned there are some health problems, which can be partly mitigated by choosing a professional breeder who does the correct screening, but not 100%.
They're great with their own children, not always with visiting children. They do need plenty of training and socialisation but once past the teenage years most of mine are happy to spend a large part of the day lounging on the sofa. They're not outdoor dogs, they like to be inside and comfortable.
Overall you do have to put a bit more work in with Dobes than you do with some other breeds, but I'd argue you also get more back from them. It just depends what you want out of them.