Beat it. I'm not quite brave enough for hardcore mode though. You get less ammo and money, the enemies hit harder, and you have 3 SAVES for the entire game. Also no checkpoints, so each time you die, you go back to a previous save (probably 4 hours back). But you get a foam finger for a weapon that kills everything, so its all ok.
Just wait until you hit the Ishimura for the second time. The game really takes off there, with no real pause in the action until the game is over. One of my favorite moments in all of gaming also shows up here:
"What was I to you Isaac? Your friend? Your lover? Your one light one BRIGHT SHINING STAR THAT YOU CLUNG TO IN THIS UNIVERSE? Or am I your guilt, crushing the life out of you because you can't admit it. WHO AM I TO YOU?"
"You were my everything! And if I let you go, then I've got nothing left"
So touching. Too bad the game shits all over this scene later. Isaac gets no happiness.
So yeah, I sort of liked it.