I visited their website and after creating an account put in an order. I was given a total amount and the amount which was stated was immediately charged to my card. I woke up the next morning to see that I had been charged again, this time for ~$5 more than originally stated.
When I went to check why my account was charged twice I realized that the website now said my order was cancelled with no reason specified and also that the second amount I was charged was nowhere to be seen on the invoice.
I contacted their customer support and received a reply which, in a very rude way, told me that I was not charged twice (I was) and that it was because taxes had not been accounted for in the first charge (admitting I was double-charged.) What professional company doesn't have a way of calculating taxes on a purchase? The representative said my order was cancelled because I was "not an existing customer" (why are you taking new orders if you're NOT taking new orders?) and that they couldn't contact me because they didn't have my email (which they did because I had created an account with my email AND I had received a confirmation email after placing my order).
I am writing this review in hopes that any new customers looking to buy from CriticalTool.com (or their parent company LabSource.com) will steer clear of this fiasco.