Powerful Stick Vacuum - recommendations please

Some are much heavier than I expected.
I did look at these last year.
Some aren't so comfortable in your hand.
I'm still looking.

Another vote for Shark. It empties itself, has 3 power levels, is light, bends in the middle to get under furniture and deals well with cat fur. It breaks down to give a hand held which is great for cleaning cars, stairs and cobwebs.

I like my shark that bends in the middle. Find it powerful enough

I've just bought a Miele Triflex HX1 and I'm well impressed. 3 suction levels and, when using the lowest level, the battery will last an hour. I only used level 3 once and I struggled to get it to release the carpet! It's lighter than my old Dyson and it comes apart much easier if you want to use the handheld bit to clean the car.
Not the cheapest but by far better than either my previous Dyson or Shark.

Have you tried a GTech AirRam? They are cordless and very light. I find ours is certainly powerful enough, but don't have very deep pile carpets. I have the K9 version.

Thanks will have a look

I have a Henry Quick stick cleaner. Does a good job on my light coloured carpets.