Alluring. Amusing. Appealing. Arousing. Attractive. Beguiling. Captivating. Charming. Delightful. Enchanting. Engrossing. Enjoyable. Entertaining. Enticing. Enthralling. Fascinating. Gripping. Intriguing. Inveigling. Mesmeric. Pleasant. Provocative. Riveting. Seductive. Spellbinding. Stirring. Tantalizing. Winsome.
It is my opinion that the word, "interesting" has become illusory when expressing one's opinion about art. I can appreciate the succinct use to describe the work's effect, however it fails to distill any individual perspective (or, ideally, weltanschauung) other than a limited vocabulary. Up your game, humans.