I'm sure the dev will call this "not a real one-star review" or accuse me of being cheap, but at the tier one level, I didn't have access to creating a flow or doing seemingly anything. When I clicked to create a new flow both from scratch and from a template, I was redirected to a subscription page. All of the other menu options led me to a page displaying the following message: "This feature requires a higher plan. Please upgrade to access it."
I watched a very condescending onboarding video to see if I was doing something wrong, and I followed the directions from the video, but was still met with the same subscription page. I tried to access flows in both the browser interface and the desktop app. I'm not sure what tier one actually got me, because isn't the whole point of the software to create automations? I couldn't access a way to actually do that at tier one. I checked to see if I had activated the LTD from AppSumo successfully, and was able to confirm that I had done so.
I returned the product, deleted the app, and will go back to Zapier for my automations.
UPDATE: As predicted, this dev is unhinged. Read his responses to negative reviews before you choose to support his product. The responses are absolutely wild. As a business owner, my advice to the dev is to not be so rabbit-eared and to respond to negative reviews with introspection, humility, and kindness instead of blame and deflection. He could actually learn and grow from some of the well thought-out reviews that have been posted instead of responding with anger and insulting the reviewers.