A dry citrus-woody fragrance centred around the orange tree. I smell a crisp and natural scent of orange and petitgrain, with a touch of herbs, that evolves quickly to a dry, sheer accord of woods laced with a bit of moss. Very natural, high quality, and refreshing - however, definitely does not wear like an eau de parfum but more like a traditional EdC. Sillage is almost non-existent, and duration is around 3 hours on skin from a liberal application.
Alternatives would be other EdCs that are similar (Eau d'Orange Vert, Concentre d'Orange Vert) or different (EdCs from Guerlain, Hermes) or perhaps Terre d'Hermes which can be imagined to be an EdT reconstruction of the basic theme presented here.
(rating 3.5/5 if one ignores the price/concentration issues)