Les Diablerets, Switzerland

Les Diablerets isn't very big or flashy and there's only a few hotels. I get the feeling skiers come up for the day and then return home. The chalets dotting the hillsides aren't fancy and the shopping street very small-townish but, there's a nice relaxing feel to the place. Good walking opportunities.

Is this place hopping or is it dead in the summer?
Not much going on.

Is there a lake and/or golf course in town?
No.

Arriving by car the only option?
Train service to Les Diablerets from valley floor.

Does the place feel claustrophobic?
No.

Lots of choices for acccomodations (hotels/ chalets) and do I have recommendations?
Only a few hotels to choose from but, I imagine many of the chalets are for rent.

Could I spend a whole summer here or would I get bored?
Two weeks max.