I had a lot of skepticism when I decided to try the General Emperor pump. Well 10 years later, it's been proven to be great. I haven't touched it at all, other than changing the oil. It's in my busiest bay and I would have changed packings at least twice in any other pump in that time period. If the rattly noise of the Cat's is annoying to you, then you will be surprised on how the Emperor is so quiet. I haven't run it dry to test out the claim that you could, but try that with any other pump and see what happens. You will have ruined your packings. As my existing pumps die, I will be replacing them with Emperor's. The only downside is that the packings cost 2X what a normal set do. But, if they last 2-3 times longer then it's more than worth it. The Teflon/graphite packings are superior in my opinion. I added a 2nd Emperor 2 years ago and it's also been trouble free. The guys at General Pump are also great to deal with, so that helps too.