Not as good as you'd think, but not as bad as you'd think.
Bugs? Heck, this is the most glichiest game I know! There are too much glitches for me to name here. But, too show you how many bugs there are, not only are there bugs during gameplay but there are also bugs during the credits AND pause menu. THAT'S how glitchy this game is.
Buying and selling drugs is a nice touch (buying isn't neccecary as you can bust them and take the drugs, even when you're off the force), but it doesn't save this game much.
Buy it if you wish to play the classic NARC (which you can unlock) or sell drugs, but if you're looking for a GOOD shooting game, your far from what you're looking for.