Some may be offended becuase none of the current custom modified ICS roms are stable, sure they run. Stable, no. Built off the leak, yes, much more stable, but they are basically tweaking.
The most stable build will come after acers offcial release, or when the A200 release is modified, which isn't to hard (minus hardware feature differences, but combing some apk's can fix that).
It's after people take the officials, and debloat them, and tweak further that you get the best roms. If you use thors, then see the last shown offcial build (not the leak) you know how much they changed it on acers side). As well as performance differences, device support, and other featues.
In cases such as phones, and issues with those such as the droid charge, taking the official, moding them, proved worth while, but previous customs not buidl of offcial versions simply always come short. Be nice if Acer would release the source code like Samsung has.
The leak also has 3 known bugs that Acer addressed. Even after the A200 ICS OTA, there was already a upadate.