I have studied in the Menton campus, middle eastern programme.
Choose Sciences Po if you are looking for a stimulating environment surrounded by incredibly interesting people, from all over the world. Some classes are valuable and have great teaching.
Don’t expect a great administration or organisation. You will have to face living in a new environment semi-alone (beside your friends – which become a family in such a small environment). A few classes were disastrous, as is time management – with days as long as 10 hours.
I would choose Sciences Po again for the people I have met, the opportunity of the third year exchange and the automatic entrance into their Master’s programme. Do not expect academic excellence in regional campuses.