Great game! Just finished story after completing all city objectives in each territory. If you're seeing this and debating playing it I'd highly suggest if you enjoyed the old assassins creed games. Much smaller opposed to Valhalla, which I personally appreciated. 100% can be done under 35 hours easy even if you're exploring.
As far as the people complaining about combat and it being more stealth focused I had no issue and liked the fact that I couldn't rush into a fight against 20 people and kill them all easily. It got really old in Valhalla the tedious raids, smash attack button for 5 minutes kill 30 people and leave. And the combat really isn't that difficult, I played hard mode first and still was to easy. Yeah you'll die a bit to enemies but not every single encounter unless you really struggle with the concept and execution of a perry. Plenty of stamina to deal with most situations, try not to fight more than 3 guards at a time and use assassins focus when needing to thin out an unavoidable wall of enemies. The people complaining about combat probably got mad that they couldn't run inside a restricted zone and mop up 100 enemies and need to rely on actually using tools and stealth to defeat them in a game about, get this... Being an Assassin lol
I'll be putting Mirage 2nd on my list of favorite recent AC games right behind Origins.