So far been doing the game on tactician as a solo character lone wolf and am around level 12 now. Some fights are ridiculous due to gains, especially with boss characters as the stats were already high to begin with. It was ok until I got off Joy, the stat increase wasn't that out of wack but now it has gotten a little silly.
I like many others was expecting a similar thing to EE with new mobs and the occasional skill here/there, hardest AI, etc. If its just a +50% armour/hp/damage boost across the board and nothing more its quite the let down and I would change the difficulty back down if I could.