Multicharts is a product that is offered by tssupport.com - I do not use it and cannot comment. It has become available for use with the decisionbar system in the past few weeks, but I don't care for the charts, and don't plan to use it.
I have been a subscriber to the decisionbar add-in for Esignal for several months and I'm pretty pleased with it. It works well on some thngs and "just ok" on others, altho it's possible with some tweaking it would work well with the others, too. I have not taken the time to find out for certain - I trade primarily Russell Eminis, and it works great out of the box on those with a 3 minute candle. It's not really a black box - I think you need to use some discretion with trades, and they strongly recommend using the risk oscillators, but I don't especially like them, and just use the basic setup. I like taking most every signal in the times of day that I like to trade, and using agressive profit-taking to ensure positive outcome.
If you have specific questions, I'll try to answer them...