# Rachel Tompkins, Head of Ecommerce at Grundell Kitchen — read of dynamic-pricing-engine, May 18 2026

> 11 years in DTC ecomm, currently running Shopify Plus for a kitchenware brand doing about $14M/year, catalog is ~900 active SKUs, four competitors who move on price constantly.

## How I got here

Someone in the Ecommerce Fuel Slack dropped this link in the #tools channel with the message "anyone tried this pricing thing?" No context, no testimonial, just the URL. I get about two of those a week. I clicked because we've been burned by Prisync giving us stale competitor data and I've been half-looking for something to replace it. That's the specific pain I walked in with.

## What I clicked first

The rule simulator near the top of the page. The pseudocode block — `IF competitor_stock = 0 AND demand_index > 1.2 THEN raise price by 5 to 10 percent` — that stopped me. It is the most concrete thing I have seen on a pricing tool homepage in two years. Most of these pages show a gradient blob and the word "intelligent." This showed me a rule. I wanted to see three more.

The projected output right next to it, "New price $268.50, projected weekly lift +$4,210 revenue, margin held at 42%," that could be fabricated but it at least forces me to think about my own numbers. I ran a quick mental calc on one of our categories. That's good page design.

## Where I paused

The "Who runs this in production" section. The three personas — DTC Head of Ecomm, SaaS Pricing Lead, Marketplace Operator — are written specifically enough that I found myself nodding at the first one. "You sell 800 SKUs across three categories. Three competitors move prices weekly." That is my situation written back at me almost exactly. The specificity is unusual. I read that paragraph twice.

Then I scrolled to the bottom and hit "Honest disclosure: we don't have live customers on this idea yet. We shipped the strategy package; you ship the customer conversations." I stopped and re-read the whole page from the top.

## What I distrusted

Two things. First, the identity crisis of the page. The entire hero and use case section is written for me — a DTC operator. "Your prices are stale the moment you publish them" is my pain. But the bottom section is written for someone who wants to BUILD and sell this product. "Agency owners reselling to clients, anyone with an existing audience or customer list." I came here to buy a tool. I apparently landed on a page selling a business idea to someone who would build the tool. That is deeply disorienting and I almost bounced at that point.

Second, the Fermi math they show on the page: "Year-1 take-home (Fermi): -$33,520" and "1 in 8 meaningful-success odds." That is not a confidence signal for a product I was considering subscribing to. If the studio building this thinks the odds are 1 in 8 and the builder loses money year one, why am I supposed to believe the tool will be around next quarter?

The $250/month starting price appears in the hero section but then "Unlock dossier $5, Adopt the build $99" appears at the bottom. Those are not the same product. I have no idea which one I was being sold.

## What would convince me

If this is a tool I can actually use today, I need one live case study with a brand in a comparable category, their before/after on one specific rule, actual revenue numbers, and a name I can Google. Not "a DTC brand in the outdoor space" — a real name. Even a small one. I will not forward this to my CMO without that.

If this is instead a product idea I am supposed to go build myself, the page should say that in the first two sentences and not waste my time with the before/after copy written for someone else.

## What I'd ask in an email reply

1. Is this a live SaaS product I can subscribe to today, or a build kit for someone who wants to launch this business themselves? Because the page reads as both simultaneously and I genuinely cannot tell.
2. You show a demand index in the rule simulator (1.31 in the example). Where does that index come from, how often does it update, and what is it actually measuring — pageview velocity, add-to-cart rate, something external?
3. Your margin floor enforcement — does it check margin against COGS I import, or against a fixed percentage I configure? We have variable landed cost depending on which 3PL a SKU ships from and that is the thing that breaks every pricing tool we have tried.

## Verdict: on-the-fence

The rule builder UI and the use case specificity are the most honest fifteen seconds I have spent on a pricing tool page this year. But the page is serving two audiences at once and is not a complete product for either of them. I would reply to one direct and clear email that explained what this actually is.

---
*Memo by skeptic persona, generated 2026-05-18. Studio breaks own self-grading loop.*