These are a great option if looking for shorter spotter arms at around 20" of arm length off the rack, which is essential for me to fit my REP smith inside my 30" crossmembers. Build quality, fit and finish, etc are all quite good. They are relatively low profile in terms of height they take up on the rack, not as thin as true low profiles like surplus strength, but much slimmer then your typical Rep/Rogue spotters.
Most other options for 20" spotters are pricey custom options from Bremmy, surplus, black widow, etc and are $500+. At $250 these are a reasonable deal for the quality, but check your shop app for a $100 coupon, in which case these are an amazing deal.
The quick-lock mechanism of a groove in the pin holding the spotters in place is a nice touch, since it means to adjust you can just lift and slide them out, rather then requiring multiple hitch pins. Not a game-changer.
Performance
Value
Build Quality