Sutter Home is a perfectly respectable zin, and at a good price point. Nothing off about it that I recall. Though I admit my tastes tended towards higher-end single vineyard Zins when I could get them. (My absolute, all-time, favourite Zinfandel is Monte Rosso Vineyard from Robert Biale Vineyards. Their 1998 Monte Rosso exemplified what a good winemaker who works closely with his vines can do in even a fairly off year.) But sadly, it's been >5 years since I drank the last of my Monte Rosso, and I can't get any more.
Peet's Lion Mountain Keemun.