those are just rebadged, more expensive FS trucks. the FS trucks are decent for the price, but the CEN ones are overpriced. the FS ones can be had for $600-800 for the 4WD versions while the CEN 4wd versions are about $1350.
They say a good mechanic only needs 2 tools - WD40 & Duct tape. If it moves, and its not supposed to, duct tape. If it doesn't move, and its supposed to, WD40.