First off, this is a MASSIVE improvement on Tekken 6.
I have followed this series since the original was released on PS1 so, having been majorly disappointed by Tekken 6, I was prepared for the worst loading up this game for the first time. However, on first play through you get the feeling that the developers have genuinely gone all out in addressing all the niggles of the previous game in an effort to present its fans with a thoughtful, entertaining and nostalgic experience.
Being a sucker for Tekken 2, I don't care much for some of the new characters so it was great to see the likes of Jun Kazama, Angel and Kunimitsu back with decent skill sets that didn't make them feel like they have been added in just for the sake of a Tag game. For nostalgia buffs there's even a movie theatre dedicated to the openings and character endings from Tekken 1, 2, 3, and the first tag. There is a massive rostra of characters but this doesn't jeopardise the quality of the game.
I found the greatest improvements to be the music (with some reworked recognisable tunes and the opportunity to edit in tracks from your own music library), the levels which are interesting and diverse without being ridiculous or just plain unimaginative and the character renderings with detail paid to the various textures and materials. This game feels a lot less cartoony than Tekken 6. Best of all, its just easy to pick up and play.
All your usual modes are here, Arcade (with some decent and genuinely thoughtful endings), Ghost, Versus, Team Battle etc. Customization has been limited somewhat but I found this streamlining to work in the game's favour.
After Tekken 6 I had all but given up on the series. The FREE DLC characters and the clear effort that has been put into creating this game gives the strong impression that the developers had a genuine desire to appeal to fans of the originals and for this reason TTT2 certainly has more than a hint of nostalgia!