It's a fairly lush Oriental that, IMHO, is better suited to cold climes. That said, I've worn it in the summertime w/o any incident.
I CAN see this one as both appropriate for formal as well as informal wear. Btw, the edp version (hard to find in the US) is very complex, sweet and syrupy -- avoid it unless you're fond of rich, Lutensesque creations. (I am, but not all are.) That one, IMHO, is appropriate only for very formal and (oddly enough) very romantic situations.