I was on the fence on getting Studio Series Prime since I have an army of Primes as it is, but he's more impressive than I thought.
He has a lot of small panels and movable parts for the transformation, it's actually pretty cool.
Starscream is a really nice upscaled totally redone version of his deluxe. Uses a lot of the same design but very different.
Here's to looking forward to more of these figures.