As mentioned in another thread - only runs on the mk1 saturn. You need the re-release to play on the later revisions.
It plays great (of course!). I have been trying it with the 3D controller and the standard pad.
The 3D controller auto-centres you on the screen when you let go of the controller. Did the original game play like that? I can't remember. Does it work that way with the mission stick? I presume it does.
Playing with the standard pad is easier because it doesn't auto-centre. You can slowly tap dodge the bullets which makes it easier. I suppose it depends on what you are used to.