Everything needs to be checked. Start off that no matter who it is, they’re trying to take your money and go from there. A lot of bad reviews on companies are exactly as Rambo said, traders don’t take enough time to read what the offer is. Bonus, withdrawals, deposits. It’s also volan also said about review sites.
In my opinion before you select a broker to deposit real money develop your trading method and money management plans first. For example say your trading method is scalping in and out with a plan to take several trades in a 2market over lap. You wouldn’t and couldn’t do that with a broker that doesn’t allow scalp trading. And don’t rely on the " all brokers allow scalping" you don’t want to consider what all brokers do or don’t do, just the one you plan on doing business with.
I (personally) deal only with ECN brokers. Oanda and Alpari have been around for a while. I’m from Canada Oanda has regular meetings in Toronto which I’m close to, however both of them are Market Makers and one of my broker rules is not to deal with market makers. Hot forex and FXCM both offer ECN accounts. FXCM is very active on baby pips. Now Traders Way is also active, Kate will send you signals for no charge and overall they’re not bad, however, another one of my rules is broker must be regulated, and Traders Way is not.
If you do the same planning in selecting a broker that you should be doing with your trading method and money management, you in most cases have a lot less headaches when you start with real money. Demo accounts are Demo accounts, so you can open one and practice but when you’re getting ready to go to live, take the time in the beginning and you will probably be glad you did down the road. Once again my opinion and hope that helps