Chapter 1/2: "I've only got appraisal" Well, we all know that's bullshit because we've read an isekai before, but sure. Really hope they don't fuck this up by just making him a hyper-powered monster and completely ignoring the premise!
Chapter 3: "Appraisal became super appraisal!" And there's the massive powerup we were expecting. Still, it's actually a bit more restrained than I was afraid of, since it's still basically appraisal, just taken to a ridiculous level. Never seen the idea of appraising movement patterns before, and that's an interesting way of letting him survive while still keeping him at a power level that can face challenges (as long as holy stick doesn't one shot everything). Could definitely be worse, I suppose.
Chapter 4: "Appraisal can steal the skills of anything you look at!" Fuck. Fuck, fuck, fuck. Why. Why does every isekai writer have to be this much of a hack? I can name a dozen different isekai where they have 'steal the enemies powers' stuff off the top of my head and at least those had the decency to make those the main premise! Why does everyone that tries to make a 'I just have one shitty skill' manga immediately throw away their own premise?! God damn.