I have been trading with FXview for a while now, and I am happy with their overnight charges. The charges are minimal, and I don't have to pay any additional fees. The charges are based on the trading instrument and the number of days the position is held open. For example, if I open a 1 lot position of EURUSD and hold it open for 3 days or more, I will be charged $5 every other night. I find this to be a fair and transparent way to charge overnight fees.