Help with Yamaha 661

I'm writing to see if anyone here has experience with Yamaha 661s. I played throughout high school and college and played mostly on Holtons/Conns before falling in love with a rental Yamaha 667 in college. A shop near me has an older 661 in stock but I've no experience with this Yamaha version. Just looking to see if anyone had any experience, what the intonation, tone, etc. are like before I drive out there.

Thanks!

Also, I'm posting b/c I've been out of the game for a few years after having kids and don't 100% trust my read on the horn right now. Thanks!