There are parts of the website that aren't easy to read due to the low-contrast colors chosen. This was particularly noticeable in the checkout, where the shipping and payment details are entered and also this comment form, funnily enough.
I had thought it was my night filter, so I turned it off. That made it worse. I then turned on high contrast and large type, and that didn't help.) If you haven't gotten a formal accessibility review on your site, I'd recommend it.
As far as customer service and the product go, my experience was stellar. I would definitely recommend M+D crutches to others.