I buy from them almost biweekly, so I’m really familiar with their checkout process. If you want the best price, since you’re also in the states, I would recommend just checking out in Euros, and use your credits card directly, this way your bank does the conversion and it’s usually at a better rate compared to what the website shows. If you want to hide your credit card info for some reason , there’s always the PayPal way, but then PayPal does the conversion and their rates are terrible. Every order that’s over €100 has free DHL shipping , which usually takes around 3 days to get to me. For some reason they usually don’t ship on Mondays (their time) so if you ordered over the weekend, you might not get a shipping notification till Tuesday (US time). But that should be enough for the package to be delivered on Friday of that same week. Or you can order on Thursdays and get it delivered on Mondays.
And of the tens of times I’ve ordered from them, I’m still a happy customer, nothing but good things to say about them. Quick email responses, genuine products , quick shipping and huge discounts.