My Buddy, is a very large chi about 12 lbs. he is also very stocky for a Chi, but he is a purebred, not the best breeding. Bambi is also purebred, but is only 3.4 lbs. she is very shy and nervous of new things. They are so different but we can enjoy them for their differences. Your guy will have his very own special things, enjoy!!! The ears do take awhile and as several people mentioned they might not stand up completely. I think dogs are like people they all seem to have their own personality, some more unique than others, with a touch of breed charactoristics throwen in.