I was intrigued by all of the moving parts of the ET. I bought it more as a curiosity piece than as an actual user. In my opinion, it would not be a great everyday user; it's just not great ergonomically. I have a full sized Al Mar SERE 2000 that I use and carry every day. This knife does not have a gravity feature. It works on more of a camming action, which is also how it locks. I've actually considered selling mine and getting a mini SERE because it just sits on a shelf.