I think this is a 3.5 star book - it's a relatively traditional tale of falling in and out of love, only Fitzgerald has the talent to make it interesting:

'he was thankful to have an existence at all, if only as a reflection in her wet eyes.'
Wonderful!

Tender is the Night appears to me to be an excellent holiday read - could be something about the ease of the French Riviera setting.

I think the most intrigue comes from trying to uncover the meaning of the Keatsian title. Much appreciated. Plenty of material here for Freudians too :)