I think it was generally a success, with a few "cons".
Things like having to shift the pit lane entrance and exists, and the fact the track was bumpy show a lack of preparation. One could even go further and wonder if there had been any consultation with the Formula One Teams Association or similar organisations to get an indication of their requirements.
The fact Mark Webber's car was sidelined because of bumps on the track is really unacceptable. We know that at least Red Bull, and possibly other teams as well, had to rewrite part of their car's software to accommodate the roughness of the track.
And to have an incident of the Heidfeld / Barrichello nature and a fine levied against a team because of poor track layout, again, just raises questions about what, if any, consultation took place between regarding the track layout.
While the race was a failure for Ferrari, what it really highlights AGAIN is the need for some sort of warning light or engine disengagement mechanism to be installed in cars when the fuel hose is attached. The current situation of no warning light and no engine disengagement mechanism just means it is inevitable that someone will be killed because of a refueling hose disengagement issue. I just cannot understand why this isn't taken seriously.
While there is a lot of criticism about the Safety Car, to me it is a success. I know that sounds strange, but would Alonso have won without the current rules? No. Would Vettel have won without the bad weather? No. While the Safety Car rules aren't adequate from a pure racing perspective, they do highlight inadequacies in other areas of the F1 format, such as difficulty in overtaking. The fact both Alonso, Vettel, and Piquet at Hockenheim were able to compete effectively with leading cars when at the front of the race proves their cars do have the pace to compete if allowed to do so. What the qualifying system needs is a change to get one or two of these cars near the front so they can succeed.