The controls to throw things/enemies do take some getting used to. Longer more fluid motions help. Quick or frantic waggles don't work very well. Frankly I think the game uses motion really well we're just so used to spamming waggles that it takes a while to realize that the game actually does motion right. After getting the hang of it I have next to no problems.
XBL: WiiVault Wii: PM me PSN: WiiVault
PC: AMD Athlon II Quadcore 635 (OC to 4.0ghz) , ATI Radeon 5770 1GB (x2)
MacBook Pro C2D 2.8ghz, 9600m GT 512 iMac: C2D 2.0, X2600XT 256