While I'm not a huge fan of this manga/anime, but I like it mostly because it avoids some of the most rampant clichés that PLAGUE the isekai genre:

1) the main character isn't a bland, utter beta who gets a love interested handed to them because otherwise there would be no freaking story since the MC is just that bland. Also because she's a freaking spider monster, but when did that ever stop authors?

2) the MC doesn't make their world feel instantly sad of them (maybe the reader for a while). She also doesn't waste too much time on self-pitying more than what anyone would given her shitty situation before it gets annoying.

3) Things and people also don't get automatically attached to her (mostly because she deals with other monsters and being one herself as well), but there isn't that bullshit of "oh I automatically know that spider monster our ally!" excuse either.

4) the MC struggles to get what she wants. It's not a few chapters of training, she actually fights and learn stuff progressively instead of having shit literally handed by a god in their universe or after some mild training (by the way I hate this one more than any other of isekais clichés).

5) the MC also learns not to bite more than she can chew and there are more than one time she survives thanks to quick thinking, and knowing when to avoid fights (but also through dumb luck).

I see you