The story is centered around a guy who has been reincarnated as a sword, and is now carried around by the adventurer Fran. The story by itself has been fun to read. It features many of the aspects common to other Isekai novels, like a game-like leveling system with skills and everything. The story also visits interesting places and they, the sword and Fran, aren't just aimlessly wandering around and actually have a goal in mind. Which is always nice. Below I'm explaining the reasons for my rating in a bit more detail. So some very mild spoilers ahead. The character gaining new skills and growing stronger isa fun way to show a character's progress/development in my opinion. However, it happens quite often that the writer seemingly forgets about things he's written before like; Fran gains a new skill, next volume the skill is gone. Fran gains new specialized equipment, next volume the equipment's function is forgotten and replaced with something new that does the same thing.
Something else that bothers me is that, while Fran does grow stronger, everyone else seemingly does so too. In volume 1 there are only a couple of strong people she encounters, a couple of volumes later the hero-rank adventures literally start popping out of the bushes.

All in all, it's a fun story to read, just don't mind the smaller details.