I have an F1 Junior, with a pre-eagle logo, and koa on it is amazing, over 15 rings per cm in some areas. Acoustic sound and the way the wood vibrates in your hands as you play are extremely pleasant and growly and big. Legitimately warrants a piezo. The pickups are Super Distortion lookalikes, no opinion on them yet, plus mine is passive. The tuners suck, in a way Klusons suck, not terrible but annoying after Schaller/Hipshot/Sperzel. Very cool guitar, set me on a hunt for an affordable F1B or an F2B to play while I save for a Series I.
I have to say though, I got mine for 450 euros shipped, makes it way easier to praise than if it was 4.5k.