Does anyone have experience with PureColor stains? www.purecolorinc.com

I'm wondering if they have a color that compares to Minwax Dark Walnut. I could order a bunch of samples from them, but I'd rather not spend a bunch of money and not find anything close. So if anyone has experience with their products and can point me to a color or two that might be close, that would be great.

Thanks!