I've used the GiGi all purpose honey wax, hemp and tea tree cream waxes in the past, all of which did a perfectly good job at getting hair out. Their pre and post epilation products are pretty standard, although I still keep a bottle of their Wax Off lotion in the salon - as Gillian said, it's really effective at quickly shifting sticky residue (especially if you get wax on your hands!) and it smells good too, which is always a bonus!
I'm with Huberella on the GiGi Brazilian hard wax, in fact I'd probably go so far as to say it's the worst I've ever used - I found it too hot for my liking, and it quickly becomes brittle as it cools on the skin, although this was a few years ago so they may have improved the formula since then.