Yep - I have one. (pics in my profile somewhere, I think).
I'm about the same height as you (5' fuck all) and find it really easy manouvering the bike around, due to the really low seat height.
The Shadow has a much more comfortable seat - pretty much the only failing of the C2 Spirit, which is ok, but really bad after a couple of hours in the saddle. I prefer the profile of the Spirit, and the flatter handlebars as well, though that could lead to 'reach' issues of your arms are too short.
It aint a rocket ship (pretty tame really) but is a good all rounder in terms of rideability i.e good enough for weekend cruises, daily commuting but won't let you down on a trip, either. I've ridden mine for about 18 months as a daily commuter (Manukau to North Shore), as well as weekend rides of 300 -500 odd K that were quite often 2-up - but then again that's with either the wife or one of the teenage kids on the back, and they're all midgets too. Can't help genetics, huh !!
It also handled regular Akld to Welly rides as well.
Since I moved to back to Wellington, I haven't commuted as much so the mid-week/weekend rides is all it gets at the moment.
34,000km of trouble free riding over 2 years so far.
Economy is fairly good, getting around 22 -25 km per litre of fuel.
It is an excellent compromise (or step-up) bike.
The C50 or M50 Suzukis are also quite good bikes in this category, and well worth a look, but fuckit - they're Suzukis, and every man and his dog has one - dare to be (a little) different 
As I said, I don't commute on mine much now, so that has taken that factor out of the overall 'which bike' equation. Make me an offer so I can buy an XR1200
Catapultam habeo. Nisi pecuniam omnem mihi dabis, ad caput tuum saxum immane mittam!
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