I have owned a STW since the first reamers were available. The first were used for 140 to 160s, now I really like the Berger 180 hybrids around 3030 fps.
The first ones lasted 1,010 to nearly 1,300 rounds prior to needing rebarreling, but I was loading lots of different powders and bullets finding the perfect loads. I am only shooting the 180s with Retumbo now and mostly only for hunting. My current STW was built with 2 barrels on a SwitchLug build by West Texas Ordinance (WTO), so it should outlast me, son and grandson hunting.
The only con is finding quality brass to feed it.
The 28 Nosler gets the job done, but my friends have been getting 300 to 400 less count than my STW. I have not used a 28 personally, but I'm satisfied with the 7 STW as there's not a great difference.