I subscribe. If you understand and love quantitative analysis then you will benefit. It is rich in quant. It provides market depth and breadth analysis which most download services do not provide. You will have a thorough understanding of what the market is doing (statistically). Combine this info with the normal trendline etc stuff and you have a powerfull tool. It is excellent for timing warrants if you are an experienced trader. It is very different to other services - if you like stats this is the site for you