I would agree. I am always looking to move the most amount of water for the least amount of energy so I would place efficiency first. Then reliability. I've never replaced a diaphram yet on a Medo pump but have on some Hakko pumps. That might be my anecdotal experience though. I do know that a 60 Lpm Hakko is 2.13psi and 1.62 amps. The Medo 80 Lpm is 2.13 psi at 1.4 amps.