Colors are great, but vary from batch to batch, and sometimes greatly from what is shown on website. Since I usually just need a vial, it is not a big issue for me. There is sometime significant differences in vials and lid counts for me. The last case has 12 less caps than vials. Usually it only varies by 4 or 5. The only other quality control issue is that sometimes the plastic nub on the bottom of the vial sticks out so far that the vial will not sit level, and requires me to break it off with my spatula.
I use these vials preferentially, but it is important to be aware of what you are getting.
