My males get along most of the time and are funny when they play, but i call them Double Trouble. They have an agression problem and when that happens they don't make life too happy.
Both want to be the "Top Dog" and neither will succumb to being second. What one has the other one wants no matter if you buy two of everything. Both get the same affection from us, but the agression will happen at least once or twice a day.
it is really cute when they are playing together and chasing and just having fun. We love them both dearly but I will say some days I wondered why I got two. it has been an experience especially with paper training, teaching them to sit and stay, fetch etc. it is double work and anyone that gets two dogs needs to have time to work with them.
We are working on the agression problems right now and a lot of people from this site have given me some great advice.
But, it has been a life experience.......... and most times one of joy.