Lynx is an European IB reseller incorporated in the Netherlands, but basically German. They operate in multiple EU countries. I've been using them for 3 years already and I have only good experience with them. Their Lynx Basic web trading interface is way more pleasant to use than the IB's TWS, but you get all the other advantages of IB as compared to other European brokers like Degiro. I opened an account with them because I was told, as an EU resident, I can't open an account directly with American brokers. So far the only regret is that the only available advanced platform is TWS, which as a software is a piece of crap. Lynx Basic is fine, but too limited for me now. As an European there's nothing better though. If I can I'd otherwise gladly switch to TD Ameritrade to be able to use the ToS. So for now it's Lynx Basic for trading and TradingView for charting.