My review for ABChem:
I've placed two small orders so far over the last few weeks. Both times I got exactly what I ordered in less than a week. Weights checked out as well. ABChem responded to any email I sent within 48 hours, so communication was pretty good too. The menu is ok, but not the widest selection. The packaging could have been better as the lab supplies came in the corner of a sandwich bag rather than a tiny ziplock bag as most of us are accustomed to.
Overall I have a great impression of AB so far. The order process is super easy, communication is good, tracking is provided which is better than some vendors who don't, and the lab supplies are what they are supposed to be, delivered in under a week.