What's the difference? What are the pros and cons?

Q: Dear Ed, we have an older home with the original plumbing fixtures in our bathroom. But, now it looks like the toilet has to be replaced. Also, due to custom shelving above the toilet we have a low ...

Question: Dear Ed, I have an older low-profile, one-piece toilet I want to replace with a new high efficiency model. But because the tank height is so low and I have shelving above the tank, I will ...