Should I give up on slickgrid for now?

I'm trying to use slickgrid to display a result set from a Rails controller action. It seems like there's a JSON bug in the way. It's easy enough to get the "simple" slickgrid working with Rails, but everything falls apart when I try to pull data from the controller. How should I be going about this? Should I just put this on hold until the JSON stuff is sorted out?