Is minecraft single player good?

So my problem is that I'm not planning on getting playstation plus, and so should I get minecraft if I'm only playing single player. Also how long will it last me?

On the PS3, probably not that long, depending on how creative and self-motivated you are.

If you really get into exploring and building things, it could last you a really long time. I've know people who build huge constructing in single player. I've know other people who couldn't get past making a single crude shack.

PC Minecraft has a longer lifetime because it can be modded.