It can also be a great way to learn about organizations operating in the area, and the causes they support. if you *are* shopping around for a longer-term volunteering gig.
Ways to make it better...
If I had to make changes to this organization, I would...
... have trouble thinking of something that needed to change. Though it might be nice if they were funded better; I think that's the main factor limiting what they can accomplish. (I'm already making a sizable contribution each year. Which is itself a serious endorsement.)
Would you volunteer for this group again?
For the time you spent, how much of an impact did you feel your work or activity had?
Did the organization use your time wisely?
Would you recommend this group to a friend?
When was your last experience with this nonprofit?