The website is ok and easy to use not much to be said.
Improvements or suggestions
The address inputs are created for NL address type (but other countries in Europe has a different format). Should allow users to choose a more lax addess. Also during purchase you can not go back and check data in previous step. If you click back in browser then you lose everything. The website should allow users to go back and fourth in purchase phase.
Also DH delivery was problematic, my address and my phone number were missing, luckily they had my email and I got my package.