Great art and decent enough characters that have room to grow. Omega himself has an arc that could lend itself well to a more serious transition after a comedy oriented start to this comic.
My main complaint would byme that Hiro himself hasn't had much time nor room to develop. The plot threads with his teacher and with the girl who invited him to karaoke are two I'd like to see develop, as would I like to see his relationship with his work and life in general change.
Omega and Hiro are both opposites of one another, and it would be a shame to see one left in the mud while the other hogs the spotlight.