I just un-boxed mine, took it apart, then put it back together...
all my bearings had minimal grease on them and LOTS of metal shavings.....so I cleaned them all, caked them up good w/ Super Lube (synthetic grease that I used in my ratchets), and re-assembled and went for a ride....the bike definitely needs better gears, layed back seat post, and a new set of handle bars (they're too narrow for my taste)..
I'm about to go to Wal-Mart and buy a seat for it too....the one that's on it is NOT comfy
I work in the oilfield so I'm planning on taking mine to work to ride around the big ranches on the lease roads