Jamie,
I went 2 years ago – I love it, I mainly rode on my own as I went with my sister & her partner they hired some bikes for a few days but were not into like I was. I spent 4 days on my own blasting down The Pleney & into Les Gets on my own, mostly people were pretty friendly.
I am toying with the idea this year, when are you thinking of going? I have asked mates but no one ever commits so I just go on my own.
It can be done a budget (go to supermarket on the way into Morzine and get cheap food/beer, in the evening have some beers at your digs then go out about 9ish to the bars…but they are expensive!
What sort of riding are you into?