GTMartin, I couldn't agree more with you on that. The car/engine feels much better now with 400 miles on the clock than it ever did from the 5 miles it had on it from new.
I said exactly this to my friend a couple days ago, and seeing your post just now, also backs this up.
He has a 2003 Audi S3 (225hp) and he was soo impressed with my car with the Quantum tune. He was astounded with the rate of pick up and boost and general way the car drives that he has branded it a 'hooligans' car with that torque and torque 'steer', he just loves these cars now.
He also swears to god that it's faster/quicker than his S3, and I actually have to agree with him. A little thing called power to weigh ratio and his car weighing 1450 kg.