We have tried several repricers before finding Feedvisor. No other system even comes close! Feedvisor increases your margins as well as your sales by getting the Buy Box with the best margins. All the others are just interested in pushing the price down to get the Buy Box. The support and additional analytics they provide have increased our sales on top of the increase the repricer did.
It doesn't matter if you are a big or small seller, if you are serious about selling on Amazon this is a must software.