I doubt it'll be as reliable as the focus. My mates had a few 2.0 focuses and they've all been bulletproof. Known a few lads to have clio's and they have all had problems a few electrical too and have been a headache!
The clio will be quicker and better then the focus through the corners but won't be a great difference. As said the clios feel very cheap inside as well!
Personally id stick with the focus