From the email I received
Following on from last year's successful launch of FxPro cTrader (ECN platform), the full transition from market making to an agency model on all of FxPro's platforms is the final step in totally aligning its interests with those of its clients.
Client orders are sent directly to FxPro's global pool of liquidity providers with spreads from 0 pips on cTrader ECN - with upfront commissions, and spreads with small mark-ups on MT4 – with no commissions. The execution model is seamless and FxPro's clients can trade with the confidence that their broker is working with them and for them at all times
I think it means that requotes and dodgy practices should not occur. I don't know if this will happen in practice. That's why I was wondering what the catch is ?