I upgraded and found that the extra storage actually works against me. The more maps you have, the slower your game runs, so at least for me, I don't want to use more storage. The 3D die rolls are less reliable (the on-screen result doesn't match the chat box result), probably because the animation is skipping frames or something. Dynamic lighting also added big lag for several players.
I think if you and all of your players have newish/fast computers and connections you might not have these problems, but it's not working out for my group.
HOWEVER, I read that after you upgrade if you move your maps and unused NPCs into a separate "storage" game and just transfer them into your active game you can improve performance. I haven't tried this yet.
My players really like dynamic lighting, but it's just not my cup of
tea. I find that it's a lot of GM setup time and the result is mostly
that my players are moving their tokens around like it's a video game.
It's pulling away from role playing for my table. My campaign is mostly
outdoors (pirate setting), but once in a while there's an undersea ruin
or cave to explore and it can really set the mood then.