In reply to mark_wellin:
> but without completing it you don't really get a say do you?
I think when you spend a significant amount of time on a route, days and days, even if you don't do the whole thing in one go, you can get a pretty good idea of how hard it is: maybe even better than someone who completes the route relatively quickly like Ondra, simply because you know it better.
Andrada spent a lot of time on La Rambla too without completing it (AFAIK). So I'd say he's in a pretty good position to compare these two routes. If he thinks Chilam is say easier I think it's fair enough for him to say he thinks this is only 9a+ for him.