Well, Having just recently beat Half Life 2 Episode 2, Portal, and Extensively been playing Team Fortress 2, I must comment on these fine products!
To begin with this pseudoreview, I should start by stating my profound bewilderment at how Valve plans to 1up themselves with Episode 3. I don't even think it's possible, they crammed so much gaming goodness into this tiny, tiny box that I can't even begin to imagine what might be in store for the games accompanying Episode 3... a sequal to Portal? Counter Strike 2? (that actually has been hinted at) Perhaps Valves best bet would be to expand on what they already have by releasing an extensive update for each of their older titles, DOD:S, CS:S, and maybe even HL2

M. It will be exciting, that's for sure.
But now to more present matters, the Orange Box! Episode 2, upon completion, is easily recognized as the perfect embodiment of what Valve, I, and probably most of you out there wanted from the package; a few solid hours of high quality, dramatic entertainment that progresses in degrees of fun, creativity, and plot. All three of these come in high doses.
The story line has been extended tremendously, much more so than Episode 1 was able to, and many questions have been answered, still more, however, have been asked. The creativity is quite evident in the plethora of unique puzzles, combat modifications, and extraneous environments seen throughout the game. In the realm of expanded gameplay and fun, this has got to be one of the best first person shooters, or just action games of all time. Individual character personalization, enemy variety, AI, puzzle/predicaments, and graphics have all been improved upon exponentially, showing extreme amounts of progression in each, amounting to a grand showcase for what the Source engine (in it's aging years) is capable of. I've got to be honest and state that I am proud of Valve, they really brought together some great stuff here. And that's not even mentioning Portal, which, while a simple puzzle game in itself, managed to...