Does anyone have one of these ? and if so what are your thoughts on it? I am thinking about buying one as it only ways 950grams.., I did want a good Bivvy but there alot more exspensive and weigh the same as the coleman rigel x2, i did want just a 1 man coleman, but i prefer the shape of the rigel x2 to the 1 man version, plus the 1 man version weighs nearly 2kg and the 2 man version weighs only 950grams, that abit weird i think. anyway on the coleman website its priced at £79 but ive seen it elsewhere for £60, Any thoughts or advice about it anybody?