delta76 yes the sound is definitely the biggest difference. but it seems from the video, rotary pump allows immediate build up of pressure, and more stable flow rate, which ends up in better espresso, both visually and taste-wise. interesting if true
Sadly it isn’t true…if anything the more gradual build up of pressure from the Vibe pump gives the better shot, Rotaries, just sound nicer.
delta76 I have always thought that Rotary is quieter + more expensive + lasts longer than vibration pump, but this video shows the difference is more than that (directly affected espresso quality)
It’s quieter and more expensive, but in domestic use, believe it or not, the vibration pump probably lasts longer.