You can kill quite a bit with Defiant class and it's critial hit special weapon. No one can stand up before the might of the Romulan Empire!

Well AIs arnt the real thing, plus if they dont have critical shot they are completly useless against me.

well one thing you do i find very annoying is thar rommie building that lets u destroy any ship u want i want that out the game

That is my second favorite romulan station. It's great to use, a giant ship is terrorizing your base yet ur too busy in battle with another enemy, simply use the station to blow away the pestering ship. Muhahahahha, Muahahahah, haven't tried this strat yet. I just use a massive infinite fleet of cubes to swarm complexes. After assimilating the romulans, I have a fleet of tavaras to assimilate my enemies.  

the intel center is tipical for the romulan, why face the enemy if u can stab them in the back, but i dont mind if that staton is used against me in defence, but i get pissed off if the enemy has several cloacked ships in my base and is destroying my cargo ships and big battleships without much risk to himself.
 

But Defiant classes have a 6.75 second reload time, I really hate that, that's the main reason why I don't build those ships, not unless I have more tritanium than dilituium.  

by the way therte will be a few changes to the intelligence center. the sabotage ability will have increased energy costs and probably you won't be able to sabotage vessels like freighters and construction ships.