If you are using it mostly on road then full suspension is a disadvantage, you'd be much better off with a hardtail.
A cheap full sus bike will have shit components to make up for the extra cost of the frame, and a cheap full sus frame will be shit anyway. You'd be much better off with a quality hardtail with a decent frame, some ok forks and good components for the same money.
Listen to the advice given, get something from a quality brand like GT, Specialised, Kona, rocky mountain etc, even if you have to buy second hand, it'll be worth it in the way the bike rides and handles.
Jeep make good 4x4's, but since when did they know shit about bikes?!?!?
In answer to your question, in my opinion definately get something else.
Stu.