I don't use any signals for trading, it's illogical with 80% accuracy, trading is not that simple, and don't ever be fooled by the reviews you read, of course they will definitely get bad reviews, if there aren't any you might I know what I mean, hiring people or making fake reviews, because nowadays everything is easy to do
So many trading signals are posing as some sort of trading gurus, I don't think they are that accurate anyway, so many trading signals out there only speaking loud where their prediction somehow becomes right but as of my observation most of the trading signals that I see are just basically trying to predict based on TA and thats it, but we all know that sometime TA is a hit and miss because it can be right sometime but it can be wrong sometime too.
personally I've tried several signals, i've tried trading on pairs and invested based on their supplied information in regard to what certain coin might be rising and the come out is even worst than when I don't use them.
honestly I just don't believe that there is any crypto signal that could really give accurate prediction, most of them are just relying on some TA and call it a day.
therefore its always better to have your own analysis because only then you can truly determine a good coin thats good for yourself.