Better than I thought. By Brian on 1/23/2015
Brian would recommend this product to a friend
I have never owned the Vertex so can't comment on the ease of use for that one.
I had wondered why this one cost so much more.
From what I can tell the Vertex doesn't have magnets?
If you look at the photo there is a white area in the middle bottom sticking up. Above that meets another spot on the removable internal basket. Inside of those two white areas are very powerful magnets that are set with opposing force. So the basket is basically levitating on a magnetic force. (note the gap between those two parts) It's pure genius. It does move easily with one finger empty but with stones and water it takes a little effort but I would imagine without the magnet would be quite a heavy lift up and down.
Build quality is what you would expect from the Germans. Pump is small but feel heavy like a quality piece. Rubber O-ring is high quality.
One thing I think could have been better was a built in valve to control the pump. Also mine is the 2L and it could easily hold 3L and plenty of room on top for carbon bag.
Is it worth that much more money? Not sure but now that I've seen the magnets in action I would have to buy again.