pretty awesome.
my team so far is butterfree, pikachu, wartortle, combusken, quilladin and pidgeotto. as you'll notice, mainly kanto.
gamefreak seems to have balanced the general pokemon mostly around kanto and kalos. which is awesome to me, but widely received as a bad idea.
leveling seems a lot easier, especially with the xp all revival from generation 1, though it seems audinos are not widely available as they were in gen5.