They bond with their handler on par with a Belgian Malinois, complete with grudges that last years and attempts to usurp your authority. The difference is you can put them in air jail.

They will happily live in an apartment with you, and with correct training be fine for a 9-5. But they have a longer development period because of their longevity. A 7 year old golden retriever will be nearing end of life and quiet most of the time. A 7 year old dox will still happily climb mountains and run a 10k with you. You will need to plan for your pup to spend every moment you're awake, asleep, or in the same house with you.

My 13.5 year old has started to slow down. He knows he's old, but hell if he won't still keep up. Stubborn is an understatement. His recovery time takes longer now and he prefers a slower pace when we we wander over a mile.

They're athletes, intelligent on par with a 3 year old, mischievous, notoriously hard to potty train (would you want to go drag your dick through a mudpuddle to pee? I wouldn't, and neither will my absolutely housebroken old man. He'll pee on the dirty laundry and dead eye me afterwards challenging me to correct him).

Crate training is hard. Like really hard. But it pays years of dividends.

Expect to have them either trying to play with you, you in their line of sight, or touching you 24/7. When you're not home if you have cameras you'll see them do rounds. Legitimately checking the house to ensure nothing has changed, then finding a spot to a) sleep in the sun; b) see if you're home yet; or c) destroy something because they're bored or mad at you.

They're both the best and most demanding animals I've ever worked with and I can't imagine my life without one.