I loved FFTA with really the sole exception of the law system, which was in my opinion occassionally game-breaking. Sometimes when something like Swords or Attack would be banned, you'd be in a really tough spot.
Personally when i entered a battle I would check the current laws and try to set my characters up so they would be able to do something without breaking the laws(even if really wanted to level a job that used swords or whatever). though it can hard to do early on when you have few characters who don't have alot of job/abilities options, the beginning laws aren't that bad.
Also the system favored the computer because computer players could not be jailed.
This is not true in the least, only a few computer characters cannot be sent to jail and they only show up on certain missions(a lot of missions, butt 99% of computer characters can be sent to jail(they just didn't break laws very often). As luck would have it, in FFTA2 the computer is not affected laws in the least and breaking a law once means you can't bring any characters to life if they die(as well as certain mission where breaking the law mean you failed).
Personally I liked FFTA's law system and was dissapointed that many laws where removed for the English version, the less then/greater then damage/cure laws were awesome. BTW there are laws in FFTA2 that put the Japanese FFTA laws to shame.