My mom-in-law is a huge fan of Penzeys. She's the only reason I have something to compare my experience to, when shopping with My Spice Sage...but I'm grateful to have a deeper appreciation for how nice it is to shop here - better selection, great customer service, fast shipping...and spices that are potent and delicious, which I no longer take for granted. This sumac was tart and sharp, making me really feel its impact in the recipes I tried. If you own some Ottolenghi cookbooks, buy your sumac here!!!