The first thing worth mentionin is that the plot of this manga is, in all practicallity, a copy of Hunter x Hunter. This isn't necessarily a bad thing, I enjoy Hunter X Hunter and was enjoying this.
The second and the most important thing worth knowing, this manga was quite obviously axed. Reaching the final chapters there is a jarring jump in the story skipping all the real development of the manga and leaving little closure on the story as a whole.
Characters were introduced, developed a little and then it ends. This manga was fun and would have been enjoyable for a bit longer but the way it ends just leaves a feeling of whiplash.