i have 2 55 pounders...one male (picasso, 3yr) and one female (dali, 1yr)...they are the best dogs ever. they are hyper in the young age but they settle out about 3yr old. i will prolly never own another kind of dog. i had a brendle at one time till my ex took her...both the dogs i have now are sable and identicle in size and markings. gentle with kids and love to play with other dogs...kinda skittish towards some big dogs but 99% of the time that are cool. good choice on the doggie.