My collection of mismatched plastic ware is reaching its lifetime limit, and
is in a holding orbit over the trash planet.

Recently, I saw the Whistle Vac 6 Piece Vacuum Sealing Food Storage System
offered on QVC. I thought the price wasn't quite fair, so I decided to do
some more research.

While surfing, every link to "Whistle Vac" miraculously wound up at QVC.
Deceptive internet practices aside, QVC doesn't provide any real data on
the quality of said product or comparisons with other "burping" storage
ware.

Any owners of this system care to share their experiences?

How sturdy?
Plastic quality?
Any visible heat damage from microwave?
Discoloration?
Utility evaluation?
Vent and valve functionality?

Any suggestions for other storage systems appreciated.

Thanks to all who reply.
jetgraphics-at-yah-who-dot-com.