I have had the same problem as other yelpers with the non stop calling.  ive asked to be removed from their calling list 3 separate occasions.  last night they called me past 9pm.  I would be happy to donate blood, but not if you are going to be blowing up my phone when I have asked you not to.  other than that, the staff here was nice and the place seemed clean.  the constant harassment has caused me to never step foot into another united blood service building.