What is your DNS speed?

I just tried the open-source DNS benchmark utility namebench. Here is the impressing result:

Google Public DNS-2 is

76.4%

Faster

than your current primary DNS server

Here is a graph of the mean response duration:

The full result is at http://namebench.appspot.com/id/424004. The question is: are you willing to give all your DNS queries to Google for an average of 67 ms speedup for each DNS query? Can you even feel the difference in speed?