I think that Online Sequencer is more comfortable to use than FL Studio and if I had to decide do I prefer FL or enhanced OnlineSequencer, I would rather pay for the Sequencer.
It's a perfect way to create for such 'analphabet' like me, who doesnt't know how to read music notes xD
I finally 'discovered' a free DAW - LMMS, free Spitfire Audio LABS vst plugins and a free version of BBC Symphony Orchestra vst