I guess it really depends on your outlook, let me explain I've tried Bet Angel and its rival Geeks Toy (Google it), like you thinking I could improve on my matched betting income. So I tried the non-funded phase and it was great, soon as I put in real funds and experienced the reality of using these software.
To put it briefly put any interruption in a live event will mean you will invariably take a loss. The dreaded "suspended" will appear and when it disappears your position will be worse off. I have tried Bet angel and geeks toy on tennis, horses, dogs, the premiership, and international football. Is it possible to make money? yes but there are certain caveats, A) make sure your hardware setup is bullet proof as if you internet fails you may as well through your cash away. B) have a betting strategy and knowledge base independent of the software. C) Read up and see what other people do with the software (I personally wouldn't advise paying for a course, but that's me) and decide if you want to follow their strategies or forge out on your own D) Most importantly be disciplined, betting is gambling and undisciplined gamblers are the bookies favorite customers. Take control of what your doing, make a plan and stick to it, only increase anything when you've banked more than what you "speculated with".
I hope this helps and might I just say if speculating interests you, I think regular trading is a far better road to tread...
Best of luck