I must say I definitely preferred Claudia to Zoe- nothing bad about Zoe's presenting but Claudia did have something special which I think was lost. However, I do agree, I think Claudia's decision came at the right time, although her loss of interest in ITT was apparent, it wasn't screamingly obvious, and I think she left before it all got a bit too much.
I think it'll be a sad day when she isn't on the show as a whole anymore, I prefer her to Tess enormously as a Sunday presenter, and thought her vibe with "Len's lens" and "The Grant!" really was quite nice for the results show which had previously been VERY drab!