Personally I prefer soft/exchange, there are many markets to bet on.
Sometimes it is possible to bet on soft/soft.
It's almost impossible to place live surebets between pinnacle and exchange.
If you have no experience it's very risky to do live surebets for a 2/3 reasons:
1) odds move very fast
2) softwares lately make a lot of errors
3) live surebets finder softares are very expensive
If your surebet page shows, let's say, 20 surebets, for the reason n.1) only 1 or 2 are
real, the other ones have already expired before you reach the bookie page.
You risk to watch your monitor and feel frustrated not to be able to place a surebet,
you risk to get forced to play negative bets because of changes of odds.
I use Betburger but 2) and 3)
I don't know how the other services work.