iPad users - functionality question

Hi all  I currently DM on a very very old laptop that needs replacing  currently looking at an iPad for general use rather than a laptop but I need something I can DM from  1. any DMs running from iPads can you tell me about your experience  2. is there a  way to shift click a token on iPad to bring up and roll from character sheet?  TIA

I've tried doing GM work on my iPad a few times and it's too annoying. Now I restrict all GM work to my Mac Mini.