The previous model was 7 or 8 years his ministry was done to the pump piston leak. Now we have the new model. 1. The new model is extremely much louder - what one morning especially enjoys. 2. You have now 2 switches operate instead a: electrical switch side of the unit and mechanical Schlauchabklemmer on the handle. This means that the pump must pump at least for a time against the closed tube, what their life is not secure beneficial. Was probably cheaper, not to move the electric switch through the tube (like its predecessor). 3. The attachment of the nozzle by means of another locking knob is also more complicated than the previous model with a pure Steckarretierung. 4. The magnetic mounting of the handle was previously also much nicer than the pin, on which you have to plug the handset now. These are just the points that I noticed after the first use. We'll see whether this significantly more expensive equipment has also 7-8 years.