Arabesque is not a specific style, and so this compilation is basically a collection of electronic Arabic music, under many sub categories and styles, and from many countries.
I don't like some of the tracks, and I didn't like it at all when I first heard it, but if you listen to it a few times you'll find that the songs are mostly very creatively produced, with traditional roots. Perhaps this is just a collection of the most high quality Arabic electronica, but there isn't (mercifully) TOO much of the slick techno beats that have little depth. Most of the artists reside in London, Paris, New York or other western cities, but are foreign born, and so they incorporate western studio techniques and styles while making them unique (mostly), and a few songs have lyrics in French or English.
The first track is Moroccan, with strong roots, and even a tolerable modern, "bass-driven" beat. There's some Arabic rap here as well, all of it excellent. Beyrouth Ecoeuree stands out, and Aalash Kwawna, by U-Cef, seems to adress the issue of censorship and free speech. Sidi Mansour is actually quite beautiful, with a beat that never becomes too monotonous, and Arabic orchestra, voice and chorus. Gnawa Impulse's Lahillah Express is very compelling, blending a soulful voice of a sufi gnawa singer with electronics (though it could have done without the electronics, really.)
All in all, if you like Arabic music you should check it out, though there are definitely a few disappointing tracks. You'll probably find it interesting if you like electronic music, as this is full of many different kinds.