On the subject if you mind my input you can think of them as an over ripened fruit. There advances in physical ability's as well as high intelligence and pride make them the weakest because the way I see it. They have no intuition what so ever, their scientists are limited in views on what they come up with so they suffer penalty's when coming up with new tech and even then if they come up with something similar to another species it would be less effective in battle. Strategic wise their pride at certain times in battle will cause them to go to a frenzy thus disobeying their controller and performing their own actions.
although stamina and resiliency may be in there favor their weaknesses will get them killed and wiped off the universe. Also low birth rate some options will be blocked until the player can successfully change their views and lessen the amount of pride they have especially if they're attacked a lot and lose every battle the get into for a while.
Member of Jester
The neat thing is not that I play tricks for you, it's that you play tricks for me.