Finished, took me 5 hours, 38/55 secrets found. Final boss was a bit of a letdown, liked the
fight more. Also had a lot of slowdown on the later parts with the higher enemy counts and explosions, especially at the final boss. I was fine with the 'official' lack of quick save, but when I hit this boss on hard, a few extra saves will be more than welcome.
Already started a replay on hard in EX mode and as expected New Game + does wonders for this game. You continue your path to max out everything, with a higher difficulty to spice things up.
All in all it's a really good game and it's disappointing to see the peak number of players for this today at 514. That's terrible for a new release, and completely undeserved. Disappointing to see this topic practically dead too