Basically, it all comes down to how much you miss the flying levels in Rayman Origins, and how okay you are with seeing their core mechanics resurrected with little of the charm and none of the originality. This imitates those games pretty well, but doesn't add anything of its own in the process.
Screenshots
Logout
Are you sure you want to logout?
Create Auction
If you auction an item, it will no longer show in the regular shop section of the site.