Anyone got an impressions (good or bad) of these? I'm giving some serious thought to getting the 6ft one. The only comment I could get out of the other half was "That looks like it'll ruin your posture" They look quite comfy and it certainly can't be any worse than the knackered old bed settee I'm having to make to with at the moment. The website selling them is http://www.buddhabag.com. They don't seem to be a big retailer from what I can tell. Anyone know if they are reliable?