Hello!
We have had club level twice in four years. Once with a Savannah view, once as DVC April of this year.
First and most used, is the access to 6th floor lounge there at Jambo. You can get free refreshments, snacky food, snacky breakfast things, and at certain hours, beer, wine etc. The food shouldn't be considered a replacement for a meal, but i guess it could if you eat enough of it.
Its a great experience...its a nice place to relax in the morning before going out to parks, and a great place to unwind after.
The room with a view is awesome too, as it will face Arusha...where most of the animals at Jambo hang out.
There's a few other little perks like planning help, but the lounge is the biggest perk. In my opinion.