Good edition to the Paper Mario series. Not great. I'm a huge Paper Mario fan, but the sticker attacks function is a new one that I'm not a big fan of. I played this to the end, great music and visuals, but you'll probably find yourself avoiding battles as you will get no partners and ALWAYS fight more than one enemy in 99% of the battles meaning you're almost always going to take damage in any battle. The "thing" stickers are weird and you never know exactly what will work out or just wont. Worth paying, but for Paper Mario fans only. Even then it doesn't quite work. It's difficult from the beginning. Huge, I mean huuuge game for the 3DS. Check it out. It's cool, but it starts to get annoying and repetitive.
Usually you can't go wrong with a Mario game. Actually this game was cool for about 20-25 minutes until I passed Bowser Jr. After that, the game became completely frustrating and I basically got stuck. I read some of the reviews here to confirm my suspicion: there is no point in fighting 90% of the enemies. They will just use up your stickers. And when that happens, you have to back track a lot just to regain stickers and all non-bosses respawn!