From my personal experience I used, I paid about $ 70 a month, and I got a ticket every 2 days with odds 3-4, I was not satisfied, I guessed poorly (more precisely that tipser), out of 15 tickets, the hits were 7. which is very bad for that odds. I lost a lot on that, so I'm interested in your experience?
I don't think spending money with this is beneficial to you also gambling website seems fair already and I think for professional gamblers they are going to share their tips and method for free.
Stil most of the time it was just experimental but still method could also work but I don't think it is worth it.
As far as I know, professional gamblers in sports will definitely offer paid tips, of course they are looking for profit. But usually, they share free tips once a day for free with the intention of attracting them to join the paid group. Joining a paid group is not bad for sure he will give you a few tips with high odds but don't expect it to win 100%.