Essec BBA is a well known program if you want to attend a business school. The teaching is qualitative as the teachers usually are reputed experts in their fields.
As far as it concerns the campus, you cannot complain about the diversity and quality of high tech equipment or the comfortable auditoriums.
Pretty much everything is made for you to feel at ease and evolve as an ESSEC student.
One of the rare things I could point out is the school campus location which is pretty much isolated and a bit far from the centre of Paris, otherwise, you can take public transport, easy to use and practical for your everyday student life.