Trading the Betfair markets is most definitely a genuine earning opportunity and for those who are determined and committed enough, it certainly can and does replace a full time job. And then some.
The Best Price Execution feature enables customers to get matched at the best available odds on the Exchange. With the Best Price Execution feature switched on, if better odds are available, or become available, after you have placed your bet request, your bet will automatically be matched at the improved odds.