Chose between V11 and V10. The first one is 10k more expensive. A little more powerful, an electronic display, a little more time (perhaps for large apartments V11 will be just right). I looked at real comparisons V10 loses quite a bit. Figured that was enough. Very satisfied . Has pros: Works great on both hard floors and carpet. Powerful. Good filtration. Lots of baits. Not heavy. Very well thought out fitting. Quality is in the details. Some cons: The time to full discharge at full power is a little more than 10 minutes.