Well I think the 230kw figure is a load of crap and I doubt with a stock ecu you are making over 180, so normally you'd see ~200 with the neo turbo. It is also a required upgrade before you can do anything else, can't go bigger turbo or change injectors without it.
Should see better economy and smoother acceleration definitely thoug, really need to see what it is like on the dyno now to see how much of an improvement there can b, some look worse than others and have a huge dip in the midrange due to it richening up.