Tax is £245 a year for pre 06 cars...nice little bonus.
My fuel economy started at about 16mpg, then I learned to change gear before hitting the redline Its now up to 23mpg including that 16 odd I was doing at first so probably about 26mpg driven sensibly.
Insurance, well depends Im 'older', male, living in trendy part of london, car parked on the street, my insurance is only £120 a year more than the 1.8 Astra I had which is ridiculous.
I got the boot divider in mine, works really well, got three large sports bags in there at the weekend, then threw various other bits in the space in front of the divider (jackets etc). Oh and of course you get a great set of cubby holes behind the seats for odds and sods, loads of cubby holes in the car actually.