Well it helps the engine breathe better. There will always be arguments as to whether or not that is worth it. I would ask you to try this and let you determine whether or not the intake will help.
Go outside and jog around the block with your mouth taped close so you can only breathe through your nose. If you make it through that, then go back out and jog around the block without the tape on your mouth and see which one is easier to do.
People tend to only focus on the performance aspects of an upgrade and the quite frankly most mods are not limited to this function alone.
So my opinion is that an intake is worth it in that the engine is able to breath a bit more freely, it definitely improves (makes louder) the sound of the blower if you have one. So you kinda have to take it all under consideration. But if you look purely at performance gains, I doubt they would be significant enough to light any fires but throttle response would improve.