Yeah, I think this port generally feels very lazy, which is very disappointing for such a great game. Music aside, I do not think the sound in general is acceptable. It is much much lower quality than the main game and the volume of it is too hard to hear, all making a really great experience nowhere near as good as it used to be.
Not sure what to expect from future digital releases. Outside of AM2's work, SEGA's releases on XBLA, PSN, WiiWare and Steam are decent to sub par at best, and some of the most horrific re-releases of games I have ever seen at worst.
If there is one thing SEGA just absolutely cannot get right this generation it is re-releases of older games. I would argue that they might be the worst big company this generation when it comes to this... Pathetic, especially considering how fantastic some of these games are and how wonderful previous ports they made turned out.