We stayed on this site in June 2015.  When we arrived were asked to choose two pitches from those that were vacant, which we did.  We should have taken into consideration that we were near the smallest facilities block on the site (two loos for gents and ladies and only four showers).  This was probably the business part of the site for caravans, motor-homers and tents.  Not impressed with the chemical disposal being directly next to one of the ladies toilets.  Pitches are spacious enough and as we were plumbed in and out we used our own shower.  There are lots of mobile homes on this site and some of the occupants were using our limited facilities too.  The newest, relatively large facilities block was placed right in the middle of mobile homes - didn't quite see the reasoning behind that.  It did state limited WiFi but as someone else has pointed out in this day and age it's not good enough - especially at 15Euros a week - perhaps we're paying towards improvements?  However, the staff were charming, the shop relatively well stocked and St Jean de Monts is delightful.  Two very large supermarkets a fifteen minute drive away.  We had a nice relaxing time but doubtful we'd go back.