What are peoples view on it?!

Where the gf is working/training now the person who does alot of the engine work who has been around for donkeys years and knows his stuff and suggested i get it as he can get the car running a shit load better using dta management rather than the standard ecu livemapped etc. Know its pricey but they can get me the ecu for trade and map it for next to nothing and for the price of the ecu and loom and mapping session its not far off the price of buying a L8 ecu and a livemap session on a cossie ecu!!