Have eaten dinner there twice and it is now one of two Disney restaurants that we will never go to again. Both times we have had terrible (if any) service; dirty conditions, mediocre, lukewarm food (when there wasn't a 10 minute wait for food to be replenished).
We love buffets--we do a couple each time at Disney and around our home on occasion. But we have had two bad experiences and choose not to go back.
Now, that being said, a lot of people like this place (you said you've eaten twice and liked it). It is all a matter of personal taste and preference and, if you've enjoyed it before, reviews should not keep you away.