Review after reading 62 chapters Updated after 75 chapters
Story
First off, you should try to think back about the dolls you had as a child. Whether they were bear, rabbits, bears or something else...
The imagine in your head would probably look a little like this:
cute, right?
Now imagine a huge, monstrous version of it that's trying to kill you.
very cute too
This is exactly what happens to the world in Dolly Kill Kill: the earth is invaded by the strange monsters that are later dubbed "Dollies", and billions of people die, including the friends of the main character. After this, we get to see the desperate struggle of the humans vs the monsters, and it's portrayed in a way that's very similar to Attack on Titan: while a portion of the people really want to kill all the Dollies, there are others who have given up hope and wish to see coexistence with these monsters.
So far, the story is still pretty standard - not to call it a tad generic: the MC undergoes some kind of tragedy - finds a goal in his life (destroy the source of said tragedy) - joins the resistance - gets to fight the monsters. If you've read any kind of "humans vs monsters" story - prominent examples being Attack on Titan and Seraph of the End - then this will all sound very familiar. This familiarity might work out if you're looking for more of the same as the aforementioned series, or if you're new to these kind of stories and it's all still fresh. If none of those 2 goes for you, you might find it a bit boring because of that: DKK doesn't really do anything new, and I don't think it ever really will. Memorability isn't really a factor here either
As for me: I wasn't really bored by it, especially not at the start of the story. Do note, however, that this is a manga best read in batches: it's a weekly series on mangabox, and only 8-10 pages come out every week. Although there isn't really any wasted space, making the pacing okay-ish, it gets a bit tedious to read it weekly.
On a positive note, the manga is quite good at creating a feeling of "suspense", the monsters are scary, and nothing particularly dumb has happened yet either.
Characters
Although some of the characters are interesting (yes, including the side of the dollies - some actually have a personality), there's still a large number of characters that are underdeveloped (although it's ongoing, so development can still happen) or just plain boring. The protagonist feels like Eren 2.0, but with a bit less whining and more suicidal tendencies. There are no particularly memorable characters either, as befits the rather unmemorable storyline.
Artwork
The artwork is quite good: the dollies look scary, the fights look good, and there are very few panels that don't look good.
Overall: Recommended for fans of post-apocalyptic, horror and action stories, but nothing memorable - you can give it a try, but you won't miss anything big by not reading it.