My boyfriend had a cocker when we met. This dog was his "son". He never had any aggression problems toward children or other dogs, or peeing issues. The only downfall was the ear infections and how smelly it can be if you don't keep it clean.
When DJ passed away last year we wanted to get another dog, but my boyfriend didn't want another cocker for two reasons. #1. It would remind him too much of DJ #2. He didn't want to have to deal with the ears.

Although our second dog was from a breeder (I will not do that again), I agree with the other posts, get a rescue dog.