Its been a few months now since I had the remap done.
I'm still happy with it. The best MPG I got with it before the remap was 33 mpg stuck behind a queue of traffic at 40mph in norfolk, got 36.3mpg on the M6 between birmingham and manchester a couple of times now. Average is still around the 29 mpg mark, but I do put my toe down a bit.
It's a little more figity in lower gears, similar to an s2000, can kangaroo a little easier. But I do like the power delivery more, and the MPG is excellent. Getting 200-250 miles from half a tank, so happy days.