The limited gearing options is a down side, although you can modify the mount fairly easily, and you can get good performance from the stock 17 pinion (I upgraded it to a steel pinion - the kit pinion is a bit crappy). It's not a TRF-spec car though, even in MS form, since the MS is just the standard car + hop ups.
I do really like how it looks though - more so than my Durga, actually, although the Durga is a massively better car