That's a nice price for a NOS card with wavetable regardless.
Can't comment on the exact card, but I have two later AudioExcel cards with CMI-8330 chip (and no onboard wavetable). Bad news: cheap crap build quality. Good news: still not as noisy as many SB16 cards...
The CMI-8328 is a completely different beast to the 8329/30, pretty primitive from what I heard. Dream SAM9233 is legendary of course, but how clean it sounds depends on the card and how the instruments sound depends on the sample ROM, which looks quite old/small here, although withoug visible specs it's difficult to tell.
This could be anywhere between pretty awful and pretty good - although you can be sure the synth itself is good. For this price I'd take the risk, but if you want a guaranteed-good wavetable card, I'd look elsewhere for now (unless someone does actually have this and can confirm how it sounds).