It's okay. It is indeed the HG/SS tracks but with a few problems. The looping seems a little bit off at times. Or maybe it's just me.
Also, the volume of the music drastically changes when going area to area. For example, going from a city or town into a pokemon center. The city or town's music has normal volume but when I enter a Pokemon Center the music gets quiter. Creating quite a hassle raising the volume, just to leave and lower it again. It's not that big of a problem, but it's something I'd like fixed.