I'm finally watching the dragon+ interview.
I love the parts of how your tool use interacts with your spellcasting.
I do think they need a slightly better weapon list, and the Artillerist should use weapons instead of wands, or be able to choose between weapons or wands.
I'd love to see a subclass that is all about delivering spells using ammunition, if we can't make that part of the Artillerist. I'd love to shoot an arrow/bolt/bullet at someone, and make Thunderwave come out of that target space.
edit: I am also really glad they landed on Spells Prepared. I do wish they could swap 1 spell per day as a short rest, like a versatility equivalent of Arcane Recovery. Maybe as a feature in a subclass.
I also really really wish that the Spell-Storing Item feature was an Infusion option, at a much lower level.
One thing that I wish the class had would be the ability to burn spell slots to recharge a magic item with charges.