I have tried a few 3-legged chairs they were unstable in uneven ground, even with adjustable legs. How stable is this chair on uneven ground? Does it setup quick and quiet? Is it easy to carry in the field? and how? Would this G-400 be better than going the Millennium M-300 tree seat? Which gives you more options in the field in the deer woods and swamps? Is Price worth it??? I have a feeling not many people have the G-400 for feedback vs M-300. If you have either, please share what you think of them for use in the field