I bought and installed one about a month ago when my vacuum switch on the transfer case went out. I haven't used it much, but it is easy to engage by easing forward a inch or so. The 4wd light still works showing when the front end is engaged. I like the system because of the 2wd low option and because you can feel the front end engage.
The cable included with the kit is substantial, and the aluminum housing looks to be from the same manufacturer as the Dodge unit. The kit is worth the money if you have either had problems with the Dodge setup or want 2wd low and manual operation.
The best price I found was at J. C. Whitney. Wait for a catalog that has a coupon on the back.
Brian