Many years ago I was entranced by Acers and bought a number to put in pots in the garden of my previous house. They all survived and thrived and are with me now except one I gave to a neighbour. I have bought many more since for planting around the pond.
As a result I still have two original A. dissectum of different sizes, in different pots. This one is now hugely spreading and fabulous (in the side passage and in its original wooden tub from 12 years ago) but I think it is now rooted into the ground.