An anime that's about dungeons and fan service fails at both of their targets in this show. There's a lot of time meandering around the same set piece with little development of the plot and there's way more censorship than you ever thought possible. This is why this show is pretty bad especially compared to its source material which does both of those things pretty okay.
You'll enjoy a few of the first episodes. There's a feeling of grit, unknown, world building and character development that seems to get left behind at some point. Eventually you don't really know what the objectives are or what the stakes are for the characters. You're just kind of messing around and watching the MC find new ways to make the love interest uwu for him. That's all fine and dandy but without much more than that you can find hundreds of hentai that do this single objective way better.
Watch the beginning half but don't feel bad if you drop it towards the end. I did the hard part and stuck around and its not good. In fact it's bad.