I like robles, i think he has the right build and right way of playing that a lot of the top keepers in europe have (not saying he is that at all, but with time, experience and games he could be)
I'd be more than happy for him to stay in, get him on a long term contract and get someone like heaton in to keep him on his toes.
Either way i say he is easily good enough because i personally think he is, but i think given the number 1 spot from now till the end of the season will prove to others he's good enough too, including yourself.