I recently got back into making wine again. A friend recommended the Wild Grapes concentrate kit. I did some research online on the various kits. Everyone kept saying, "...you get what you pay for." Just so I had something to compare against, I purchased a red Zinfandel kit from Winexpert which was twice the cost (~$169). Much to my surprise, the Wild Grapes Cab turned out better than the kit from Winexpert.
Nonetheless, the wine produced from this kit is amazingly drinkable. I added an additional 1/2 a stick of medium roast French oak. Just to prove a point, I put this wine in front of a friend who has a discerning palate - he loved it. I've already purchased the Wild Grapes Merlot and Chardonnay.