Just read this thread for the first time. Being a fellow 330D owner I always had my doubts about tuning box's. Seems they have come on along way in the last few years. Be interesting to see some dyno results of the various different settings you have available!
Very happy with my Evolve map, too early to say if the fuel consumption has improved but its currently sitting on 38mpg, best i've ever had is 34mpg so we'll see how it changes at the next fill up!
One thing that i'm interested in is the DPF delete, might not be for everyone but for few extra horses and not to mention MPG increase it might be something i'm looking into over the next 6 months.
LSD might be something else to look at but there not cheap!!