A review for 2.25" Round buttons by Tamara Carrion.
The site: I like how informative the side is as you're making your purchase. They'll let you see mock ups that require your approval, inform you when you're buttons are being printed, when they're being shipped out. The customer service is really nice too.
The image came out really nice and clear, plus the buttons feel like a good quality button. I will note that I bought these buttons at a promotional price, but when I need more buttons in the future I'd return here to get them.