I happen to buy a zen last year, its an LXi model with power steering and front power windows. Bought the car from Pratham Motors in Bangalore. Apart from it being a dream come true (i call my car my other sweetheart!! ;-).. ) it was fun to have such a performing car with me.
It gives me mileage of about 15+ in city conditions while I clocked 17+ on a highway. Have driven it over 4500 KMs in 6 months....yeah...a power rider... and have enjoyed every bit of my stay in it....
The drive is smooth, the pick up smoother and manuvering smoothest amongst its segment.. not to mention ZEN: Zero Engine Noise.... :-) the revised versions have been a lot quicker and silent then its earlier versions.
Zen Vs Santro: Zen clearly beats santro in pick up and mileage, the AC is much more effective and so is manuvering. Santro wins in terms of the ground clearance but loses big time on comfort plus the availability of service centers.
Recommended for all the guys going for a small car...