I paid Tier 3 for digitalfirst their first software on AppSumo and they abandoned the project just 2 years after no support or communication. They just started to dress this after launching this new platform. If you google Digitalfirst Appsumo you can still catch the reviews and see that they just recently addressed this to make new money.
About the "new" platform it looks polished and has multiple ai agents and requests running in chain to develop and research from my feeling I'd say you could send multiple requests in one of the popular LLMs to get the same results. It's convenient to use but again seeing this company abandoning their last project just to come back like this smells very fishy to me and I wouldn't bet on that they are going to honor the deal in a year or beyond.