I'll be straight with you, I bounced off 'My Isekai Life' pretty hard after two volumes. The premise of the overworked salaryman getting isekai'd and then immediately becoming absurdly overpowered thanks to slime familiars felt like it skipped all the buildup. It hits those power fantasy notes, sure, but the conflict often felt weightless because the protagonist, Yuji, is just so detached and OP from the jump.
That said, if your jam is strictly zero-stress, cozy power progression where the main fun is watching an unbeatable protagonist casually solve problems and collect a quirky menagerie of monsters, it might click. The slimes are cute. But for me, it lacked the tension or character hooks that make other isekai like 'Mushoku Tensei' or even 'So I'm a Spider, So What?' stick. It's very much a 'turn your brain off' read, which has its place, but I wanted a bit more meat on the bones.