After my watching pretty much just qualifying and the race (I don't bother with the pre-race stuff) here are my thoughts on the faces of the show:
Jake Humphrey

Very natural, much better than Ryder and Rosenthal.
DC

Again extremely natural and confident in front of the camera. Great analysis, his experience of the cars shows. No Blundelisms for Sniff Petrol to parody!
EJ

The third wheel of the analysis team. Really not needed in my opinion and seems to disagree with DC on purpose?
Legard

Just about right. Croft may just shade him though.
Brundle

Yep, as normal here. Davidson is excellent too.
Lee McKenzie

Just a younger, prettier version of that ITV bird?
Kravitz

Knows the guys at Brawn and McLaren, and that's it. If he branched out to cover the other teams he would add a lot more.
Overall, it's a good show for the BBC in my view. One thing that is slightly disappointing is the level of digital noise during the race from the broadcast over Freeview, which appears to be greater than the action in MOTD for instance. I guess this is to do with the FOM equipment though. However, it does seem better than when it was broadcast on ITV.