I was always a Hoover girl and was faithful to the brand for 40 years. Own a WindTunnel, Hoover Floor Mate and a Hoover carpet steam cleaner. They have served me well and lasted a long time without any problems. I was lured by the Shark Lift Away Rotator. I am extremely happy with that. It's lightweight and really picks up the dirt well. I only have one cat, but it looks like I have 5 inside the container.
I noticed the switch on my Windtunnel is getting ready to go and I ordered the Shark Rocket to replace the "soon to die" Hoover that I keep on the second floor. Easy to click the parts together, didn't even look at the manual till later. It really pulls itself forward and the motor is powerful. I will say the head is light weight and sort of lifts off the floor if I go to quickly, but it fits between the dining room chairs, under the front of the sofa and right up to the toe kicks in the kitchen. The cup does not hold a lot and needs to be emptied often, but very easy to do. My disappointment was the motorized head that you can put on the hand held part. I had thought that it would be great for the stairs, but it does not have wheels and there is so much suction that it just sticks when you try to push it. It may work well on a different surface. Then I realized that I could connect the main vacuum head to the hand held part and that worked great on the stairs. I like having all the different attachments, the problem is storing them all. I can't decide whether to keep it upstairs or downstairs (first world problem, I know). The other thing I'm not crazy about is that it won't stand on it's own.
All in all, I'm happy with it and no matter where I end up putting it, it's lightweight enough to carry up and down the stairs even for an old girl, like me.