I’m with OANDA and have never had any issues. I believe they’re amongst the top rated. I can deposit or withdraw using PayPal without penalty, and customer service is great. I’ve actually had their reps call me on occasion just to see how I was doing and if they could provide me with any resources.
One issue I’ve found recently is their desktop platform, I used and loved it for several months, then suddenly it started freezing. No matter what I tried I couldn’t figure it out. But they do have another platform, MetaTrader4, that I’ve been using instead which I equally like. Also, their mobile app, FxTrade is great as well.
I hope this helps. If you have any specific questions feel free to ask.