Bought a 3L erlenmeyer flask from Rebel Brewer, and the glass is super thin. The first time I used it, the bottom cracked incredibly easily on the bottom of a fermenting bucket I had filled with sanitizer. I've used these types of flasks for many years, and have broken my share of them, but never with as little force as this one cracked with.
I called rebel brewer and asked if others have complained about this, and they told me no, and that I was out of luck. Fair enough. I could have made a stink and said it may have been damaged in shipment, but that's not how I do business.
Fortunately their website has a rating system with the ability to submit feedback for the products they sell. I submitted a product review with a fair assessment of what I feel to be an inferior product. I believe it was well-written and informative, and IMO not reactive to the service I recieved.
This was over a month ago. At this point, the review has not shown up on their site. Poking around their site, the only reviews that get approved are ones with 4 or 5 starts. WTF is the point of product feedback if you only show the positive reviews?
I'm done with these guys.