It is a good enough market for beginner as it is a sloppy market, very forgiving if you realize you were wrong and need to get out. But if you don't have ability, it is going to be the same like in any other market, you will lose. Slippage for bigger trader is real bad and you would swear HFT came in, but really could be a bigger trader getting out on stops.
Most of the methods I have designed for this market is rather funny, All signals are generated on ES first and if NQ has approx same distance from like a moving average, entries are made. Cause this market is sloppy for me, patterns that would well for me in ES, can't even find half of them in NQ.