The rifles that I've bought from Simpson's have fallen into three tiers;

Tier one had quality higher than expected for the price or were in an unusual/uncommon configuration. (x4)

Tier two had quality in sync with the price. (x6)

Tier three had quality lower than expected for the price. (x2)

Simpson's will occasionally under-price a firearm and they occasionally have a firearm in an unusual/uncommon configuration, but those scenarios are, at least in my experience, much less common than for them to over-grade the firearms.

If you're looking for a Husqvarna 46 in 9.3x57 or a SR "strengthened" 640 in 8x57, Simpson's had a pile (literally) of them.