In the light of the UKPSF giving turbo's the big "thumbs down" last year, and there being approx. 0 tourneys out there where you can use it, I would say not worth the money*.
Better spend the money on, say, a blade trigger, or a freak barrel, something like that. Maybe an air system if you are on CO2.
*Unless you mostly play walk-ons, and even then I wouldn't be sure you could use it