Full disclosure: I am a Trangia fanboy.I have owned a 27-7 set for 15 years, and that set accompanied me on my thru-hike of the Appalachian Trail, and EVERY single piece of it is still perfectly functional. In 1999, my stove was a bit of an oddity, but since then alcohol stoves have caught on in the ultralight and DIY backpacking communities. Now, I haven't tried any of the newer kinds of commercially produced alcohol stoves which have arisen from these later efforts (e.g. Caldera Cone, PackaFeather), but I must confess I smile inwardly whenever I read someone's experiments regarding perfect boil times and ideal air flow, fuel consumption, etc.I have no doubt that some of these newer systems are indeed lighter, faster, more fuel efficient, etc, but Trangia perfected their design in 1925, and they haven't seen the need to change it for NINETY YEARS....My sense of many of the newer systems, especially the DIY soda can types, is that they aren't really for folks who do more than boil water. Their primary design goal is saving weight. If you are interested in actually COOKING in the woods, then you need something with more features, and the Trangia cooksets offer them! With practice, I believe you can cook nearly anything you would in the kitchen with a Trangia cookset. No kidding.My old set, the 27-7, is the smaller, personal size. it is ideal for one, maybe two in a pinch. The two pots and lid/frypan are also in their discontinued Duossal, stainless lined aluminum (like All-Clad). I love the Duossal, despite the weight penalty, and was a bit hesitant to try the hard anodized aluminum of this larger set. I'm happy to report that I hardly miss it, and I certainly enjoy the lighter weight! The hard-anodized surface seems quite durable, and it's fairly non-stick, too. This larger size worked quite well for a recent trip with three people, and I wouldn't hesitate to use it for four. If your group is larger, you'll need either: get creative with your recipes, use multiple stoves, or go with a gas stove and larger pots (you can only use the included Trangia pots in their cooksets as they must fit inside the windscreen, and the largest size for this set is 1.75 liters).I was happy to see, also, that the upper and lower windscreens operate exactly as on my smaller set. These are the ingenious part of the whole Trangia set. I agree that weight is important, but If you're not a total weight weenie, I heartily recommend you give the authentic Trangia cooksets a try. I'm confident I will be using my two sets for the rest of my backpacking life. They're that good.