Yeah, it's been a renaissance for me after the servers were brought back online.
I could write an essay singing the game's praises, but it will have to suffice to say it's a hall of fame FPS and one of the best packages ever created of single player, multiplayer, and horde mode (frontier defense). Best traversal mechanics of any FPS ever. Amazing weapon and titan variety. Multiplayer matches are exhilarating and have good variety. And it looks great for something derived from the Source engine, and runs at a nearly flawless 60 fps with excellent image quality, even with a shit-ton happening. While the aesthetics and art style may be easily dismissed as generic militarized sci-fi, I love them, the lore, and the characters and their quips.
I don't think I want anything more than a third entry, but last we heard it was cancelled. Nevertheless, I'll maintain a shred of hope. The game is too brilliant to end here.