One if the most hyped up comedy anime, that I didn't enjoy at all
Now, I'll start by saying that above sentence is only my opinion and you should still give this a try, as a lot of people seem enjoy it a lot. Everything below is something I tried to write as objectively as I can, while still introducing some periodical opinions.

Rating system: Very Bad, Bad, Average, Good, Very Good.

Story: Bad
I can't rate this any bit higher, sorry konosuba stans. The story is pretty much non-existent, not much happens but there are some plot progressions here and there. I know a lot of people tend to enjoy the comedy and call it hilarious but sadly, I just never laughed or even chuckled, everything is basically focused on the character interactions and their singular qualities; spolier alert, I hated them. I expected something, I don't know what(didn't think I'll like it as I usually don't enjoy comedy in anime but I was curious) but I found myself barely being able to pay attention at times.

Characters: Bad
Oh gosh, I liked nothing from them, I get why people love them(I don't get it), I mean, who wouldn't like an overly horny masochist, an explosion obsessed girl, an always complaining and getting in debt goddess who does nothing and a mc that's actually not horrible, well he's not amazing either but hey, at least he's not fawning over all the girls in the story(he does randomly start stealing panties tho...). Ah, I forgot to mention that's it's full of fan-service(like every other anime) so yeah, that sucks.

Animation: Good
Like most of the recent anime, it's nice, not much to say besides that.

Songs, Sound & Voice Acting: Average
I personally didn't like the opening and ending but that's just a matter of taste. Everything else in this category was decent, not impressive but it's fine. Again, not much to say here besides that

Enjoyment
The depends purely on one thing, do you like fan-service and this type of comedy(revolving around the character qualities mentioned earlier)?
If the answer is yes, you'll love it.
If the answer is no, you'll dislike it like me and you'll find it boring as hell. Now, I didn't hate it, I just found it extremely boring.

Final thoughts: Watch it, if you like the first two episodes continue, if not stop(or just watch it and get bored like I did). All in all, it's not bad, nothing made me think this sucks or made me pissed of about anything. Honestly, I already forgot half of the show even though I watched it 1-2 weeks ago.
This is probably gonna be one of the shortest reviews I'll ever make(as well as my first one). I already forgot so much of it I don't know what else to write, it's astonishing really.

Final Score: Bad
Again, you should watch it, you might love it. I didn't.