I've used them for years, and was just there on Friday for our annual tasting and juice pickup trip. I've never used their hot packs, just fresh juice. I've only done hybrids and labruscas, but I've been happy with everything but their tannins. They hot press, rather than soak in must, and I think that diminishes the tanins a bit. Still, it makes for a very good wine. I've never done the vinifera juices, so can't answer that.
If you are really concerned about vinifera reds, an hour to the west, Presque Isle sells young wines (wines that have sat on skins for a short time) to home winemakers.