Amy, good to see you! Glad the career is going well.
I'm trying to remember what items I've gotten from NAS that have been clear winners. I lost my purchase logs in a computer crash earlier this year, unfortunately. Last year I bought a pair of Kut denim flares that have been worn consistently, if not a ton. They were available in both misses and plus, and I think both went on sale afterwards eventually, though I'm pretty sure that the 14W never came back in stock (it always gets snapped up asap), so I'm glad I pulled the trigger on that one right away. I ordered several knit blazers I ended up returning and a top or two.
I think some of the best deals are in the higher-end Nordstrom brands - Classiques Entier, Nordstrom Collection - and other workwear mid-priced brands, Lafayette 148, Boss, Eileen Fisher, occasionally NYDJ, etc. There are always a few really inexpensive pieces from Caslon or Pleione every year, but they tend to be lower quality and I suspect they're made specifically to be a loss leader for the sale.
There are always a few really good deals in shoes - AGL flats, Aquatalia winter boots, a pair of booties or flats from one of the Nordstrom brands. And some good handbag and leather goods deals - I got a nice wallet last year, and a wristlet, and a couple pieces of costume jewelry.