I owned the six-string model of the BTB series for about eight months. I believed that the 35-inch neck and monorail bridge would be great assets to my playing.
It was a dumb purchase, because my small hands are the reason that Ibanez will always be my top brand for guitars and basses: the necks are thin and the cutaway for high fret access is deep.
Unfortunately for me, personally, the BTB had a lot of problems.
1. The 35 inch scale was always tough to adjust to.
2. It's still light for a sixer, but heavier than expected.
3. The neck wasn't as thin as I'd hoped.
4. The finish is too metal (as in music, not steel-looking).
5. The monorail bridge doesn't help as much as you'd think.
6. String spacing is a bit wide.
These are all personal things, though. It sounds great but if you have small hands, keep looking.
I'm overjoyed with my new Ibanez bass, and might write a review about it soon.