If you are challenged by the first battle you are gonna have a hard time. Remember you are gonna mess up your build at some point if you aren't killing the fun with a build guide. It gets a lot tougher, when you get to the first town. Another thing is the the enemies don't level with you so you can stumble on a high level very early on if you don't know where you are going. I think it could be frustrating to play tactician and not knowing if you are the correct level or if the enemies are just that tough. When you play classic you can always go for a higher level area to test out you skills once in a while.