Unfortunately, no, not yet - I've moved on to the next game in my Capcom binge (Ace Attorney Trilogy). I can see myself coming back to it, though!
Fair enough, it is an acquired taste. Hope you give it another chance, it has a lot to offer!
I understand the characters have different loadouts and play differently too. I think Ada is the fastest, Krauser has his arm, Wesker has that crazy melee attack that sends enemies through time and space - is Leon considered the weakest character or does he have any mechanical advantages over the others?
Leon's only real advantage is that he's the only character with a shotgun, so if that's your crowd control weapon of choice he might be worth investing time into. But he struggles to keep the combo alive and lacks any real long-distance option, so he's certainly one of the weaker characters. Some players really like him, though!
Ada has a great loadout and fantastic mobility, so she has a lot of potential. She's basically like a more beginner-friendly, slightly weaker version of Wesker without the massive burst damage potential.
Krauser is super
hard to master on account of the sheer precision required to handle his bow properly. His arm is devastating but has a relatively long cooldown, which often leaves him without any reliable crowd control option apart from his melee moves. I'm still struggling with him and I've been playing this game for 10+ years, so...
Hunk is super straightforward in terms of his loadout and damage output (Custom TMP + Grenades). Very beginner-friendly and an absolute beast on the Village stage thanks to his OHKO on the Bellas.
Wesker is by far the strongest character thanks to his Killer7 and SAR (his melee is borderline useless, this isn't RE5). He doesn't start with any ammo in his inventory however, so he requires a solid knowledge of the stage layouts and top resource management skills to really shine. Once you get good with Wesker though, he's in a league of his own.
Anyway, the real challenge comes from learning the stages! Since you can't just camp out in a corner and wait for the enemies to come to you, you need to come up with the most efficient route so as to make the best use out of the limited time available to you. Optimizing your course of action in order to deal with the enemies and sub-bosses in a time- and resource-efficient manner while collecting the various items, time extensions and bonus chests scattered around the stage is where Mercs really comes into its own.