It is a really simple interface and right now you can only trade BTCUSD, with the feed based on Bitstamp, bitfinex, and OKCoin. You can start with "play money" on the Demo side of the site, but then when youre ready to trade with real money, use this link to get a 100% deposit match on your first deposit, so you can trade with twice as much!
Check out some screenshots:
Here's a little video showing how the platform looks and feels:
https://www.youtube.com/watch?v=X8BD4AlhT2g
So it's pretty newb friendly, they're super bitcoin friendly, and they allow anonymous no-KYCAML trading. There are no fees, you only pay the spread, and then 0.2% margin charges on any leverage up to 10x that you use. Remember to get the special 100% deposit match you need to use this link
Happy trading