He makes a massive difference to the defensive unit, because there's a belief he'll come for a cross, or come off his line if something dodgy is played in behind.
The defence second-guess themselves less.
I didn't think we'd concede due to a calamity from the 'keeper tonight; I only thought us not putting the game to bed would come back to bite us with a wonder strike or a lapse in concentration from the defence.
That nearly happened with Funes Mori, but Robles didn't put a foot wrong and the whole side looked more coherent from back to front because we had him there.
If that's the last time we see Howard in an Everton shirt, that can only be a good thing. Is Robles the long term answer? No, not for me, as I think better 'keepers are out there. But he's a lot, lot more of a better option than Howard for now.