Previous owner of a "small" BGE. Loved the grill but just needed something a little bigger. Received a $75 gift card from my parents, and the grill was marked down to $299 + my GC. It's originally a $600 grill I believe.
Yep, the top SS grate does swivel, and the main cast iron grate is multi-positional as well.
SOLID build quality - I am quite impressed. Haven't cooked on it yet, but will tonight.