Newbie hanger here. I'm wondering if anyone out there has any experience with an Exped Wallcreeper and if so whether it is a good bag for hammocking, or more specifically, is it appreciably better than standard bags due to its features, or is this just a gimmicky bag?

For those who don't know about this bag, its a center zip (full length), armholes and a drawcord at the foot so that it can be worn like a jacket.

I've seen various posts on the effectiveness of sleeping bags in hammocks and various other products as alternatives, so no need to sell me on NS or KAQ. Just looking for info on this specific bag, or any other bag with similar features.