Once again, perhaps I sounded too harsh. You should keep in mind that even after writing all of that, I consider Genealogy to be one my top 10 favorite games of all time (and after 20+ years of gaming, I've played a lot of games). I'm a huge FE fan and I can tell you that it's far and away the best one of the lot. Have you played Awakening? If you did and you liked it (in my case, it's my 2nd favorite FE), it's almost guaranteed that you'll like this one as well.
Regarding the bad stuff, it's basically just gameplay related. It's a pretty old-school SRPG, so you'll find yourself frustrated at the RNG multiple times per turn because you feel the enemy's 15% - 20% attacks hit more often than your 85 - 90% hits, but I guess you're already familiar with that. The main problem are the difficulty spikes, like I said in my previous post. It's not that the game itself is too hard; once you properly fix the progression like in the Binary mod you can even make it harder and it scales just fine. The problem is that the vanilla game has random bumps in the road that should've been ironed out in QA, but didn't, and feel frustrating when you're doing your first/second playthrough and you're not used to the game yet. It's not that big of a deal -- if you want some BS difficult game that is more frustrating than anything else, there's Thracia (and even that one is worth playing through as well, even though I don't consider it one of my favorites).
