The game is just good, every 360 owner should have it, but it's not all good in my opinion as many have said...
Half-Life 2, Episode 1 and 2;
These make up the crux of the package, brilliant story and all that, but in my own opinion if felt like it was missing something, i just can't put my thumb on it, it could have something to do with the story elements being so 'slap-dash' at points, but apart from that, it's a rich emmersive game.
Team Fortress 2;
The Multi-Player aspect of the package, good... That's it really, it would have been better if Half-Life Counter Strike source was included instead but it's not all too bad, good graphics, but i just couldn't get into it very much, it was just too placid after a few hours.
Portal;
Now this is what many gamers consider the best of the package, but in my oppinion it's the least emmersive of the bunch, it's just not my cup of tea, it's not a game i'd deam very replayable, comical at points but not L-O-L as deemed by many gamers, one time play for me, but a clever game none-the-less.
All in all the package is great, but if they were sold seperately on the XBOX 360 then i wouldn't have bothered buying TF2 or Portal, i would have just stuck with the Half-life 2 series. And it is a dissapointment there isn't Half-Life Counter Strike Source bundled instead of TF2...
Ahh well, it's an imperfect world, right..?