I highly recommend volunteering there. You'll have a great time. Even if they don't care to much about you in the beginning, in the long run they wont want you to leave.
I did't have stressful days at Good Shepherd. I had a lot of fun, enjoyed the students, had lunch with the ones in charge of the Shelter. When I left I received gifts from the students and hugs also 2 recommendation letters and 1 staff member took me to lunch and gave coupons for free meals at Carl's JR.