I gave it a solid 8. Very fun, love the combos, Ratchet's a blast to play as, fun and interesting stages, options, and an actual playable online code.
I hope this sells enough to warrant a second game. It's a damn solid starting point that needs a lot more in terms or polish and presentation. Add in a ton of online playable mini games as well and you'd have gold.
I am actually really satisfied. The online is great, and though I still have ways to go understanding the system and why some players get meter so friggin fast, the game is a blast and have been able to lose and win, and just have a good time.
Still needs more stages and characters, and a better presentation, but the core game is amazing.