Bracket/brace are fine if you use your little finger properly. Really it's a better position than "standard" keyboards since you only have to reach down vertically instead of having to move laterally as well which reduces accuracy.
Using a Kinesis is possibly the best way to unlearn all your bad typing habits. :)
I think they staggered the right bracket a little too much to be optimal. This means you still have to reach much further than the other fingers do for stuff like periods and commas.
I've seen this mentioned pretty frequently, so there are some good mapping ideas out there for those who use languages with lots of braces.
Using a Kinesis is possibly the best way to unlearn all your bad typing habits. :)
/Kinesis user for 12 years