Well, I had two v5s and now a v5.5, and I really like it.
- There are six new games (four in the first generation) which I personally all enjoy. Plus, you now get gorgeous 700 GP for winning a game, not just 100 GP like in the v5!, which makes saving up for buying items much less frustrating!
- I love the new characters, I'm currently working on getting a Royal Family :>
What else: there are no item codes out yet (which can be seen positive or negative); I personally find the contrast even worse than on the v5, but that can also be because I have the "Purple with hearts v5.5"-version which has a very prominent background picture. When playing games, you get to play with not only your middle character but one randomly chosen out of the three. Um... there are several new "screensaver"-animations, the training possibilities (which come up when you answer a training call) are different; many items are new, and of course the "special items" (those filling up three hearts at once or raise bonding) are all different from the v5. (I'm glad to have bought a dollhouse for 9900 GP so I can raise bonding now and get a character that will start my Royal Family
).
As for me, I don't regret having bought a v5.5... and yeah. That's it from me. :>
Whether you want to buy it or not, you have to decide for yourself in the end.