Has anyone used their products and if so how did you like it and how durable is so far. I picked up one of theirs today a 524 Mc Kinley. The reason I bought it is because I could fit my 40D with the EF 400 f/2.8 L mounted on it in this backpack by moving the dividers around. and still have room for more lenses a laptop and a lot of other gear. The price seemed right ($140.00 US) and a lifetime warranty on defects in materials and workmanship. I can guarranty you I will really test this bag to its limits as I mainly shoot wildlife and will be hauling it into some rugged places. I'll get back with a review in a few months.