I'm a huge STP fan. I switched to STP from another company and have been using them for three or four years now. Their quality and service is far superior, in my opinion. I like the fact that if the teachers ask for something they may tell me they like/don't like that item and why. Then I can pass that on to the teachers, give them samples and they can decide. They are also lightning fast in their response time. We've actually joked about it because sometimes I feel like I'm IM'ing them and not emailing - they're that fast.
~Sue B., PTA, NY