I have not used the Campfire Café stuff, but my main concern would be the lateral stability. You have to pound the metal rod into the ground (they say 6-8 inches). I'd be worried that an offset load, or a bump might send the whole thing crashing down. The swing grill looks nice - but same question on how much of a load can it take on the grill opposite to the metal stake?
As DaveOmak asked - how much do you need to cook at once? I have gotten by on my metal tripod (much cheaper than this rig) with a dutch oven hanging from it. With three legs, it is very stable, and I don't have to pound it into the ground. I also carry a regular old rectangular grill grate (from any propane or charcoal grill) and some steel wire. If you lay the tripod across the fire horizontally, supported by the rocks, then put the grill on top and use a little steel wire to hold it all together, you have a much more sturdy platform to grill over the open fire, and again, much cheaper.
You can get the tripod for around $25.00 - there are 50 inch and 60 inch models out there. You can get a good large grate for another $25.00. So, for $50, you have a two way system - you can hang dutch ovens over a fire, or you can put up a grate over the fire and do open flame grilling. That is way less than the $375 for the Campfire Café combination set...
and after you are done cooking, the tripod can be used to hang your lantern off the ground to light up the campsite.
Just my 2 cents