Nah, I didn't play any of the games like this. Literally none of the games require farming to complete the basic story, though to be fair you have to play well to avoid farming completely
The real epic farming is the end-game after the story, which I tried a bit in every game, but never got into.
The games hold their own with just the story content. Not that the writing is good, but the missions, mechanics and progression hold up. I mean, how cool is the stacking and throwing of units? How cool is "item world"? So many good little ideas.>>6431
Actually this is a valid way to play since you can stack tons of buffs on 1 unit (e.g. Laharl) and have him destroy the board. But having a varied party is more fun imo.