[Martin Solo]

Yes. But not your common hentai as well. Story, characters and plot are developt far better than in 99,99% hentai manga. Let's call it "erotical manga novel"

Yes, I like his kind of hentai manga much more than many other.

[Martin Solo]

The characters, especially the female ones, are Definitely better developed than those in other Hentai.

No question. 

-D'Artagnian

Indeed they are!
He is a great artist.
His comics and especially his busty female characters have inspired me for my own comics.
He seems to be still active.