I highly recommend it, purchased on day 1 and cleared it after a 40 hour playthrough in about 4 days straight. And tbh I rarely do that unless I'm really into a game
Its difficult to compare directly to other games since its so experimental in terms of design, and the way the narrative unfolds. It mixes genres seamlessly with unexpected transitions which keeps the game from getting repetitive. If you're ever played a Yoko Taro game you would be familiar with how be breaks gaming conventions.
In terms of action I think its closest to Bayonetta but with more shooting elements, a bit less depth to the combat though. The story, setting and world building for this game are all excellent with its dark Sci-Fi elements, its got a bit of ghost in the shell type of atmosphere and themes and its not comparable at all to any FF games, Nier has much darker and more mature themes by comparison. Oh and the soundtrack is possibly the best I've ever heard in a game, period.
In conclusion, just get it.