Are stock advisory subscriptions worth it?

I have taken up premium subscription of an equity advisory. They suggest me stocks to buy and sell. They offer two portfolios one for long term another one for short term. They told me I can expect a cagr of 30% over long term( from their historical data) . I am planning to invest annually 30% of my income into the long term portfolio. This over some years could give me huge returns. Note: I am not promoting them but I wanted to know if anyone in this community also uses some equity advisory to generate long term wealth. I'd like to know what features they come up with.