I bought a Tier 4 subscription (my costliest purchase on Appsumo so far). It has great functionalities and I already think it's better than some YC funded startups like Gumloop. Team seems to hear from feedbacks on Appsumo and they already added a bunch of items on their roadmap.

I faced a few glitches using automations involving Hunter (throwing 400 client error) and YouTube transcript (language field is mandatory and the drop-down isn't populating values). Hope the team resolves them soon so that I can publish some workflows.

I wish the team best taking this forward. I bought both Pickaxe and Diaflow and intend to use both of them to the fullest :D