I have had 3 or 4 over the years. The only con is after I used one for a short time, they always developed a drip. I adjusted, cleaned, and everything in between, but it would never stop. That gets annoying. Other than that I like them.
I like them. I don't own one but use one owned by my cousin. His also develped a drip and we occasionly clean out the spout with a small piece of wire and it takes care of the problem.