Instant Flower Garden 20' Take Home Turf Roll w/NutraGro . . . has anyone used this product?

Question:I saw this on QVC and would like to know if it works. It appears successful, but almost too good to be true.

http://www.qvc.com/qic/qvcapp.aspx/app.d...

Answers:
I have been eyeing this too, but I read some reviews of it (or a similar flower mat product) in the garden forum and most were negative. It is not very expensive though so it could be worth it to check it out.