So far, so good. Just got the Stratos and took it for a test run. The light weight made it easy to move around (easier than our Shark Apex upright) and it was nice not having a cord. Our house is all hard flooring with a few medium sized area rugs. It did a really good job on picking up dust and dog hair (a lot). The Clean Sense IQ is a nifty feature that adjust the suction/power level to the amount of dirt you pick up. Ivacuumed everything except the area rugs and had 30% battery left. I can see where using it on rugs would use the battery a lot faster.

The only thing I would like to see Shark make available is a 2-battery charging station. That way if you do run the battery down you can swap it for another charged one. We've had multiple Sharks over the years and they have all done their job well. This one work well for us.