Untold 1 is pretty fun. I started in story mode on expert difficulty. Is that the way to go to get the most ouf of the game? I've only gotten to the third floor so far but the difficulty feels similar to EO4.
I also read I can basically ignore those grimoire things, is that accurate? I find them a little confusing.
One thing I'm sad about is the fact I can't seem to choose my own class. I loved linking attacks with my Landsknecht in EO4.
You can change the classes for the story characters, but their stats don't change so most of the time it's not really useful. Also Links don't work the same in EOU as in EO4, so you can't even do Links anyway.
Grimoires are pretty poorly implemented in EOU. Basically, you treat them as extra skills you can equip your party with, and it's random what you get per battle (unless you manipulate RNG but that's stupid). Also they do not stack with the base class skills in EOU. It's a little hard to play the game without Grimoires in Expert, but you can just treat them as extra skills to work with.