Hello and welcome
I am new here too, and have found the forum really friendly and full of excellent info !
I purchased a Bluefin ST1 from Dominic @ Superchips during my first week of ED30 ownership, I guess I should have waited to get used to the car for a while running standard map but you know how it is.... The resulting increase in torque and bhp was quite remarkable, this being my first ecu upgrade on any car, I can think of no downside to the mod', apart from coping with winter road traction, however that is totally controllable with a careful right foot.
Lovely Car made even better.