This is another anime that has so much potential to being a great anime, yet falls short with an absolutely abysmal ending.
Art makes this anime worth watching and kept me in it, but the choices made as to how the story flows... leaves me unsatisfied. Characters are strong with a nice variety of tropes you can attach yourself to as a viewer. It would be interesting to see how this develops if there are more episodes and they get into a stronger world building style of writing.
The action sequences are really nice, reminds me of a Samurai Champloo style and does not give you that annoying 10 minutes fight scenes that are nonsense filler. I really hope this is a new era of pirate style animes that were so popular in the early 00's and I can see potential.