Yes, there is a BBB Rebate out right now for the Tassimo. You get 25 dollars back and 2 free packages of t-discs (the inserts) of your choice. I just sent my rebate in today!
And yes, you can use your 20% off coupon, but make sure you HAVE your coupon with you. I made that mistake yesterday and I bought it anyways since I was craving the latte. I am going to take my receipt and coupon back tomorrow for a price adjustment.
Here is the instructional video that I promised. The thing is SO easy to use. Sorry the video is not very exciting. haha.
And for a more professional review with cheesy background music, check this out: