Google noted on Google+ that they are coming out with a new Google Analytics report for helping AdWords advertisers who use shopping campaigns track those campaigns.
The new report is rolling out over the next few weeks and will be found within Acquisition > AdWords > Shopping Campaigns section in Google Analytics.
The report shows Acquisition, Behavior, and Conversion data for all your product categories/types. The analytics metrics you can now use to analyze your performance and optimize your bids include:
Bounce Rate
Time on Site
% New Sessions
Revenue Per Click (RPC)
and many others
To enable this, you must link your AdWords and Google Analytics account together. Here are instructions on how to do this.
Forum discussion at Google+.
