Looking for an easy, small, yet powerful vacuum cleaner to stairs and smaller crumbs around the dinner table without absorb the large suction to pick up, I came across this product. After I had no Makita 18V cordless tools, the decision was nevertheless fallen quickly & easily - just not bought with a vacuum cleaner with a high-performance cordless charger and 2 batteries à 4Ah and thus get for just over 300 EUR two professional equipment; the batteries and the charger could also cost 300 EUR - the cordless sogesehen was "free". By 4Ah battery, the machine is no longer quite so easy, but is very good in the hand. The sucking sound is much quieter than our Siemens Z4.0 but higher in pitch. The cleaning of the filter is easy with your hands; the coarse and fine filter is cleaned after 3..5 times carefully cleaned with the big vacuum cleaner (aspirated). Toll is also the way that the 4Ah battery is fully charged after about 30 minutes! Smile / food for thought: Since I also own an industrial vacuum cleaner from Bosch (GAS25) I naturally wanted even with Bosch for a battery vacuum cleaner and also found, however, Bosch has disqualified with your incompatible batteries of green and blue series in this matter with me. In Germany only the PAS is sold 18-LI Akkusauger where I can use Power4All series for all BOSCH appliances from the (green), the battery also, but not for the professional appliances Bosch blue! There would also be the blue Vacuums GAS 18V-LI from Bosch - but only from Korea. So the Europeans buys Asian (Japanese) products ... and the Asians "Made in Germany" or something like that :-)