Before the inevitable, the Interdictor is OPed or the Liberty is OPed threads...
Personally,
1 - I think the Interdictor is overpriced but looks like people are having fun seeing what "control" can do.
2 - I think the Liberty is super good at front arc killing (so underpriced - LOL) but looks like people are having fun discovering that it's just not "shoot and destroy" and are worried about getting T-boned.
I think 2 is in part the solution to the problem in 1.
If you are flying at those ships that are "controlling" you with a ship like the ISD/Liberty does it matter if you have your speed adjusted up or down? Do you mind if you are slowed down with the front arc weapons on target or sped up where you then RAM and keep on giving a hand full of dice each turn?