As you can see, the fragrance of the new for autumn 2013 Vanilla Chai candle is described as "the perfect accompaniment to "me" time - a supremely satisfyingly rich and spicy recipe of ginger, cinnamon and vanilla." There's nothing that I can add to that - thee fragrance fits the description exactly.
As with all Yankee candles, the entirety of the wax is perfumed; I've used some candles where the fragrance burns up before the candle does, but that is not the case here. The fragrance lasts as long as the candle does and is strong enough to travel over the house. I even catch occasional wafts of the perfume whilst the candle is unlit.
I've found that the tarts and tea lights throw off a stronger scent than the candles, so I think that they are the better buys. I personally prefer to use the tealights; as well as having a stronger fragrance, there's the fact that for the price of a box of 12 scented tealights you get a total of 48 to 72 hours burn-time, so they offer the most value for money. The tealight costs less then 12 tarts or samplers would, so as well as being cheaper - and offering a similar burn time - then either the small jars and tumblers, and over half of the price less then the medium jars or tumblers.
The tealights come in individual clear plastic cups, so you don't have to bother with a tealight holder if you don't have one; just sit the cup on a saucer. Yankee do many special ranges of tealight holders all through the year - many of the decorate models are under £10, and their basic tealight holder can be found online for only £1, so it won't cost as much as buying a tart burner.
[A tart is a wickless wax patty, so you'll need to buy a tart burner to be able to use it]
6 - 8 hour burn time - £1.25
15 - 20 hour burn time - £1.80
25 -40 hour burn time - £8.39
65 - 90 hour burn time - £16.99
Tea lights [12 per pack]
4 - 6 hour burn time per candle - £6.75