Walgreens

I received an email from a lurker asking why I don't enjoy Walgreens. I do sometimes shop there, but rarely. I have a very hard time getting the cashiers to take coupons, or my register rewards to print out. I also once received a messed up gift card from their rebate system and had a very hard time getting it replaced. In my personal experience, CVS is just much more coupon friendly.

Tell me your thoughts lurkers. Any bad luck stories with CVS or Walgreens?