If the game IS playable, it will be highlighted in green, and if there is a specific fix for any certain game, it can be found in the details.
The compatibility list mentioned is the best place to start. While alot of games play perfectly fine, there is still quite a few that require an 'Exclusive Method' or work-around in order to play them completely through, or to even start them up without issue.
The cfw2ofw method isn't without its flaws.