I actually signed up and used RepriceIt, so I'll give my personal opinions on what areas I see as being inferior to NeuroPrice (and NeuroPrice also has some downsides too, and I'll get to those...).
#1: Confusing settings. After over 15 years in business, I would expect RepriceIt would have simplified the process of creating settings and "pricing templates." As it stands, the various features are spread across seven pages, making it dizzying to track.
#2: You have to connect your Amazon account. Minor gripe here, but having to grant RepriceIt access to my Amazon account is a cumbersome step. I'm not paranoid about them doing anything shady with my account, but I would strongly prefer to avoid this when I'm using any software tool.
#3: It forces you to only price against the lowest price offer. This is the biggest grievance of all. RepriceIt (and almost every other repricer) makes you anchor your updated price to the lowest price only. This inherently trends your price downward. There's nothing special about the lowest price, and I frequently price against the 2nd, 3rd, 4th, or 5th lowest offer (or sometimes even beyond). This is simply not possible with RepriceIt.
Repricing should be about both lowering and raising prices, but RepriceIt doesn't have the precision or range to make that possible with any accuracy.
#4: RepriceIt can't factor in your inventory cost: This is a huge oversight, and possibly the main reason RepriceIt is so cheap compared to other repricers. There's simply no way for RepriceIt to know how much you paid for an item. This means inventory you got for free or $1 is being repriced the same way as inventory you paid $20 for.
NeuroPrice, on the other hand, has a feature to honor the min/max prices inside Amazon (you set these when you list your inventory, and it's where you enter your buy cost and minimum selling price). So protecting your buy cost is covered, and this guarantees you'll never lose money.
#5: The FBA blindspot. This might be #5 on the list, but it's #2 in terms of its impact on your profits. The FBA blindspot was explained elsewhere in this article, but to recap: It's a restriction Amazon makes on all software that limits what FBA prices it shares.
In super-specific terms, if there are more than 20 other sellers selling the same item, and the lowest FBA price is above the 20th lowest-priced offer (as often happens), then that FBA price is invisible to your repricer.
Spoiler, but NeuroPrice doesn't have this blindspot. So as an FBA seller, it's hard to accept that a certain percentage of my inventory will not be repriced correctly with RepriceIt. It's not their fault exactly, it's just a limitation of how they choose to get their data.
To their credit, unlike most repricers, RepriceIt admitted to the blindspot in this email: