Bought Samsung UA46ES6220 active 3d. Yet to be installed but took a demo at store. To be really honest there is still a long way to go for really true 3d experience on current devices. There was flicker for sure. Coming to content how many times can you really see Avataar or Avengers. The files are large and its really that you have a "wow" once in a while and be happy that your set can do 3d. But in true sense its still a long way to go.
Having said that, manufacturers are really forcing us to adopt 3d. The reason is that non 3d tv's are low end in other features as well. Have less connectivity features, often dont have smart features, wifi, and with poor refresh rates. Its almost that today if you want a good panel, you will end up buying a 3d tv.
Having said that, eagerly awaiting installer to install my TV so that I can watch my first 2 3D movies