I love Rottweilers!!

Some people think Rottweilers dogs are some of the most dangerous dogs in the world, so they don't think about getting a Rottie [instead of repeating the noun you can use a pronoun such as "one"]. But I can tell you that Rottweilers are amazing and intelligents animals.
I had a Rotweiler his named was Apollo and it was a great experience to having him as my friend.
He had the ability to protect, he was always loving, he was a guard dog, he was a funny dog , and he played with children without hurting them and he got along [well] with other pets (dogs and cats).
Finally, I think the behavior of your dog will always depend on its breeding [I would personally write "I think a dog's behavior always depends on its upbringing"]. If you're a good leader, your dog will surely be obedient and a good dog regardless of its breed.

I love Rottweilers!!
(In the following picture Apollo was 4 months)

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I have two dogs and on of them is a Rottweiler named Zeus! He's only a year old but weighs about 55 kg. He's just the sweetest thing.