Honestly, when I saw the teaser video about Alta X, I was thinking it's a funny gag or something. I really didn't think anybody would build a super heavy lifter with only 4 motors. I talked with a lot of drone pilot and we didn't understand what is going on. Then... As weeks passed by, I started to appriciate the details and nuances that Freefly started to show. After 2 months I had a chance to fly one (Thanks Matjaz @Kopterworx), and I fell in love with it. The sheer power of the X blow my mind, and the ease how it flew with 12 kg payload, like it was nothing. Honestly, the sound just made me forget everything about my concerns. One hour after this test fly, I messaged Matjaz: "I want one!" It's been 3 months of flying this monster and I couldn't be happier with it. With the custom legs it's super stable at take off & landing even on uneven ground. The flight times are crazy. I use regular 6S packs and they work flawlesly. Just the other day I got 24 min fligh time with this setup. Also flew it with Ronin 2 and massive Cooke Anamorphic lens, and it flew like a dream! (It's just a bit too close to the ground) Have to say, I was wrong. This bird is amazing! It's not perfect (gps mode could imrpove plz?) but very very awesome!