Really?
I don't think that's the foundation and key to success. What's key to success is your skill being a trader and your ability to gather information, analyze and read the market and its charts.
Relying on these signals won't do good to you, believe me. Just look how many people are telling that someone shouldn't get into these signals. Maybe you're right but as long as they're for free and you're not obliged to pay a premium or any membership fee then enjoy that perk.
But still, you are you on this one and when you trade, you're the one that should continuously learn on this market.