I played through the entire first one and loved the play through, but thought it was kind of boring when I tried playing it again the second time. So my question is, is Portal 2 any different from the first

IMO, the same as the first, but better :o

Better, longer, and it has a completely separate co-op campaign.

Portal 2 is more elaborate, much longer and much more well written than the first. Like the first, it doesn't really have replayability. So what? Amazing experiences are worth money just as much as something that you can go back to. If you factor in the co-op campaign it's about 4 times the length of the original. Allegedly.

I felt it dragged on. I played Portal 1 a few weeks before P2 came out, and I felt P2 should have been more. Many people praise the narrative and plot in P2, but I don't' understand why. Its almost as barren as P1. The puzzles are defiantly more fun, but aside from that aspect it was pretty boring for me.

If you're asking about the replayability then I would say they are about the same, only Portal 2 is longer and has a co-op campaign.

It's a really good experience though, and I personally always enjoy the developers commentary in Valve games for a second playthrough.

So I say it's well worth it, but if you're really not sure you could wait for a Steam sale.

Portal 2 is one of the finest games I have ever played, it's well worth the purchase, that said if you're unsure maybe it might serve you to hold off and purchase it when it inevitably goes super cheap on steam down the road.

  5 stars.

Its a step forward in terms of writing, voice performances and character animation that needs to be experienced. Coupled with the fact that its a pretty god damn clever puzzler to boot and there's always that Co-op if you're into that. So yes, yes it is.

no

I loved this game but i don't think it's worth $60. Forty Dollars is the perfect price for this title.

It's what the first was, only more cinematic and better flowing. The humor is better, and it's on the same level in terms of challenge. I'ts my favorite singleplayer game in a long while, you should probably check it out. 

If you're not going to play the co-op, don't pay full price. I got the game for $40 from Gamestop on special, and since I only played the single-player part, still felt a bit ripped off by the price. It's a good game, but the replay value is pretty low. I don't think they filled out the game enough to justify full price. It also has the problem of--in my opinion--being a hell of a lot easier than the first game, despite all the new mechanics. The first game had me scratching my head a few times, but Portal 2 never threw anything at me that slowed me down at all.
 
Don't get me wrong: it's worth playing. But I still think the game's not really worth more than $30.

Trust me, there is a reason it has a 95 on metacritic.

Yes, yes, yes and ... yes. It's worth getting, and an awesome game. It still is a puzzle game so multiple playthroughs are probably not something you will get out of it (I finished it twice though). But it's a little unfair to fault a puzzle game for being a puzzle game.

And there is the seperate coop. Since we are talking about valve here its pretty safe to assume we will get (free) additional coop maps in regular intervals.

meh, its alright.

It is worth getting, but it's a one trick pony style of game, once you know how to beat a puzzle thats it.

It is worth getting although the campaign and co-op should only take about a month to complete.If your gonna be bored with it after you play everything then just rent it.

You have no idea how tremendously great Portal 2 is

I loved this game but i don't think it's worth $60. Forty Dollars is the perfect price for this title.

Better, longer, and it has a completely separate co-op campaign.

I played through the entire first one and loved the play through, but thought it was kind of boring when I tried playing it again the second time. So my question is, is Portal 2 any different from the first

Its 2.5x the length of the original Portal, and has a completely separate co-op campaign that from what I hear, takes around 7 hours to complete. Also, free DLC.

Yes! A thousand times, yes!

You need to experience all of Cave Johnson. 
Oh, and the puzzles are kind of fun too.

You have no idea how tremendously great Portal 2 is

one of the best games of the year, and of recent years? yes... yes its worth getting.