I've got their demi water oven and swear by it!

Perfectly cooked meat everytime with no fear of it being overcooked! I use normal zip loc bags and just immerse in the bath to get the air out of the bag. Been doing it this way for a year with no issues.

Edit: I'll loan you mine if you want to try before buying.

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-Justin

91 560 SEC AMG - other dogs dd
01 Honda S2000 - dogs dd
07 MB ML320 CDI - dd
16 Lexus IS250 - wifes dd

it's automatic.