I also own (damn near) every device in the cannabis industry LMAO and I have recently tried Sous Vide for decarbing and I will never go back.
The sous vide device is $50 to $150 depending on the features but even the cheap ones work fine. A food sealer is recommended but not absolutely required.
No smell. This is no big deal to me but some people can not deal with the incredible smell from an oven decarb. Don't own a Nova (yet) so I can't say anything about the smell from that device. But, the sous vide is sealed and under water so there's ABSOLUTELY no odor.
Because the sous vide process is so very precise, it is nearly the same every time (strain differences excluded of course). Once you find the sweet spot for how you like your edibles, the sous vide process will provide very consistent results.
And, very best of all.... the
terpenes are not lost. Now that we are coming into the knowledge of how the terps affect the pot and our high, we know just how important the terps really are. I was adding terps back into my edibles to make up for what was lost in the oven decarb method (or stovetop as I usually used for rosin) but now I don't bother.
I have giant tolerance issues so getting the decarb process exactly right is very important for me.
Just tossing that out for anyone who has not tried this method of decarboxylation yet.
:) Sousweed.com for some tips.