It's not really the final final boss in that there is the Nameless Puppet as the last boss, which seems to be widely regarded as a really good fight, but I'm a little on the fence when it comes to Simon Manus.
From a visual standpoint, the second phase is pretty awesome: it feels grand and bombastic, and the lighting when the Arm of God reaches down from sky looks stellar. However, from a mechanical standpoint, I didn't vibe with the fight too much.
The first phase feels a little all over the place. The long and wide-reaching attacks reminded me of Godrick, the Grafted from Elden Ring but with a little less oomph to it somehow - they felt kinda sluggish. It didn't feel super engaging and a little lack-luster. The second phase added a lot of ranged attacks that hadn't been utilised in the game too much leading up to the finale which I also didn't vibe with too much since you couldn't interact with them like with Laxasia's bolts in the second phase, which you could deflect similar to the numerous fights with Ganon in the Lebend of Zelda series.
All in all, if it wasn't for the visuals and the lore significance, I'd forget about the fight quite quickly when compared to Nameless Puppet, Laxasia, Rabbit Gang fight 1&2 and many others that felt really memorable.
What are your guys' thoughts? Did you like the fight at all?