My two cents: thumbs down on the Bix3. I had to do a lot of mods and repairs to get it into decent shape. To wit:
- One servo was bad out of the box, and another went bad after a few flights. The second one was probably at least partially due to some binding in one of the plastic hinges they give you (so rip out the hinge and re-hinge with Blenderm, then replace yet another servo),
- and speaking of servos -- replacing the rudder and elevator servos is a pain; the way they designed it is extremely hostile to serviceability (Flitetest mentions that in their review of the Bix3). I went ahead and replaced the elevator servo (the third one I replaced) with a trustworthy brand as a precaution, because I didn't want to risk a bunch of expensive FPV gear with a questionable servo in the most important place,
- the landing gear is loose/rickety/flimsy garbage, resulting in atrocious behaviors for takeoffs/landings, even after efforts to adjust it (so I ripped it out and cobbled together a tricycle gear config),
- the wing-securing system (plastic wing-nuts with tiny, thin plastic overcentering tabs) just looks absurdly fragile/inadequate (so I jury-rigged a backup securing system),
- the FPV platform doesn't allow for free camera movement if you are not just using a fixed-position camera (so I made my own FPV platform),
- the ESC was only 20A and I measured more than 20A (albeit briefly) on a wattmeter test on a fresh battery with the stock motor and prop (so I swapped out to a 30A ESC),
- speaking of props -- there was vibration when using the stock plastic prop even after balancing it (so I swapped to a same-size APC prop and that was better).
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