Similar meaning, but more formal:
* Enchanting
* Exquisite
* Exhilarating
* Magnificent
* Pleasurable
* Ravishing
* Sublime
Similar meaning, but more informal:
* Awesome
* Fabulous
* Fantastic
* Gorgeous
* Lovely
* Wonderful
More specific meanings:
* Joyful (emphasizes happiness)
* Charming (emphasizes attractiveness)
* Invigorating (emphasizes energy)
* Soothing (emphasizes relaxation)
* Aromatic (emphasizes smell)
* Tantalizing (emphasizes anticipation)
Words with a negative connotation:
* Heady (can imply a bit overwhelming)
* Indulgent (can imply excess)
* Rapturous (can be overly emotional)
The best word will depend on the specific situation and the feeling you want to evoke.