First impression, looks really good! Definitely a Borg mash-up, but most are.
-Jacky is Sparky 2, and I think that's good. I like continuing the Metallica concept of new characters influenced by the band. This makes it feel original even though licensed.
-Art is killer.
-Upper playfield looks good in that the divertor allows the shot to still be a flowing ramp and not a lame ramp blocker like TFLE or GOTLE
-Love that he brought back the NBA flying ball trick. A great feature that no one saw since NBA didn't sell.
-Pro looks solid, per usual for Borg. Basically looks like the same game, minus the upper playfield.
Not an Aerosmith fan, not buying NIB anymore...but looks like a game I'd want to play for sure! I'd perhaps consider it in the future depending on gameplay impressions and if code is finished.