I have this since a couple years now. The bass is built perfectly, light and well balanced, it is all-round really comfortable. Hardware is perfect, and it's very easy to get to very low action, also frets are perfect.
String spacing at the bridge is 18mm.
What can really be improved is pickups and onboard eq, but for the first time, Yamaha finally used standard pickups routing (Bartolini P2 housing) so you can go for anything you like. I mounted Nordstrand Big Splits/John East Eq and now I have a really high-end instrument.
I highly reccomend this bass, great for beginners and also for pros on the budget