Holiday is the brightest but probably the least interesting of the three le vernis in the Summertime de Chanel collection. Don't get me wrong - it's a lovely colour (especially against tanned/olive skintones) but I feel it is one where you can easily get a similar sort of colour from any brand.
Holiday is a creme opaque Vermilion orange red with no no shimmer (The MAC Lady Danger of nail polish I suppose). The colour reminds me of Dior Aloha and OPI Bet It All On OPI - they are not exactly the same but similar enough that you'd only need one of them.
Texture wise, Holiday is easy to apply and coverage is good with two coats.
If you don't have this sort of colour in your nail polish then I would recommend Holiday. However if you have something similar, then I would save your money and wait for the upcoming le vernis (Diwali, Sky Line and the Autumn/Fall Frenzy & Vertigo).