Oanda was the first retail fx broker that has provided tick data for all currencies. I still trade with them by testing expert advisers on small accounts. Good solution for beginners with small amount of money.

Big requotes on Eur/Usd even during active market times.

Account creation sucks. The documents they ask for sometimes take a long time to fix, they are always in the name of the person in the home who registered at that time the purchase of a service such as the internet or electricity and changing the name takes a long time, especially here in Latin America.