Been shooting Zero's since the '70's.
I don't particularily care for their lube and two small cannulures on their present bullets (lead 148gr HBWC and SWC), however, re-lubed with Lee liquid alox, shoot just as good as any available. I do prefer the Star's though.
Their Jacketed bullets are excellent. I'm using their 115 and 125gr JHP's in my Perf.Ctr. S&W's for PPC competition. (They make a "Unique" 147gr JHP with a rebated-boatail base, but all 147's "string" in my guns, so I don't use these- but still have ~650 of 1,000 I bought to try out. These (JHP's) bullets are as accurate as anything available, including Remington, Montana Gold, Hornady, Nosler,Sierra, Speer, or Winchester (They are dead ringers for the Winchester for appearance- I use the Zero's to load "mexican match" for the distinguished matches in OFB Winchester cases- looks exactly like the White box Winnie's from Wally, but at <half the price and vastly more accurate).
I buy mine on a L.E. commercial account for about 10% less than the Roze price. For price vs. accurate, nobody beats them- Hornady's, Nosler and Speer Gold Dots might be very slightly more accurate- but it takes a Ransom rest and my 2moa capable S&W match pistols and several groups measured for average to see a difference- NOT discernable in a match however under competition conditions.
I get 2-3 day delivery, and price includes UPS shipping.
I 'shoots lotts of dem boolwits'..........