Diving was less than mediocre
Oh, come on. The diving is AT LEAST mediocre.
Seriously, though, it's not as exciting as Saba, but there are lots of good sites.
Lots of tiny sailboat man made reefs with virtually no coral.
This sounds like the site called Le Pont. It was never the best site and I think has gotten worse since the last couple hurricanes. But it's not really indicative of the sites here in general. For wrecks, there are at least five large ships (Porpoise, Gregory, RoRo, Fusheng, La Renee). Most of the best reefs are near Tintamarre, as mentioned above, and some of them are quite nice.