OK, here are some impressions from having demo accounts in FC.
First and the foremost - multiple platforms. There are ExpressFX (for those who want to start trading, that platform has user-friendly interface), Rumus (exclusive platform developed by FC), ActTrader (best choice I think) and wide-known MT4. Most of these platforms have mobile versions so you can trade through your iPhone or Android-phone, which is very comfortable.
During almost 3 weeks of trading on ActTrader I haven’t experienced any major requotes, lags etc. Yes, in periods of heightened volatility sometimes it’s difficult to open a deal but it’s a quite common thing for all the brokers and platforms I tried. BTW, the customer service is always online (and judging by their ability to stay calm and friendly to me examining them they have lots of patience).
Some traders can consider the level of leverage about 1:50 as a disadvantage but I think it’s a good way to learn traders how to control their own risks.
And now I seriously think of opening a real account in FC.