Three years later we are still using it quite often. Matt will get meat that is already vacuum sealed and throw that in. We'll seal inexpensive cuts of meats in simple marinades. I was never a big fan of tempeh but cooked in a vacuum bag with a balsamic marinade makes one of the best things I've ever eaten! I've done many desserts in mason jars in there!... bread pudding, cake, cheesecakes, pudding to name a few. I have a long list of techniques to try. I even read you can brew beer in there!
Here is the reference we use most often from class. Times/temperatures are helpful and we've adjusted slightly for our tastes.