Pros: Saves water, no sweating, efficient
Cons: Maybe a little noisy.
I did a lot of reasearch before cosing this model. Just go to home improvement center and put your hand in the bowl past where you can see... 85% of them do not glaze the s-trap! I was looking for US made and would flush well. And I do not mean golf balls! I was so happy with this model I bought four of them and recommend it to everyone. Having an inner tank, there has been no summer sweatting off the tank! Although it is a little noisy on the flush, it gets the solids where they need to go. Has never plugged. Glazed completely through the s-trap! I read on other models where the water went AHEAD of the solids and plugged the line further down. Never has happened in 2 years with these! Got a good deal from supplier, since I bought so many. One happy customer, I am.