I agree with adf on this. Spend some time with the Sharp ROM, before you consider switching. There's really no reason to dump the ROM in favor of another until you find you need something offered in another ROM that's not available in Sharp's.
If it does what you need it to for work purposes, why bother? If, on the other hand, you DO want to play around with other ROMs, then have at it. :-)
R.
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