To me, the VX is a poor choice for an offroad vehicle, if that is what you are after. Don't get me wrong, it does really well for a stock vehicle and does even better with a small lift and taller tires. But it is a VERY limited platform to build from IMHO.

Negatives:
Outward visibility straight up sucks.
The wheelbase is a bit short for ascents and descents.
IFS does not flex well.
The tranny is weak.
CV's are weak.
Parts are hard to come by.

Positives:
Unique.
Wheelbase works great for ledges and maneuverability.
Low slung which helps compensate for the lack of wheelbase.
Rear linked and coiled axle flexes great.
Seats are comfortable.
Fun to own and drive and wheel.

With all that said, several people here have a great time wheeling their VehiCri, me included, but as a trail rig, it's easy to find something better but hard to find something as unique. Good luck!