Let’s chat about it in our meeting in an hour
It is a MASSIVE topic
BUT there are no excuses for you not to investigate and borrow from Jitterbit (two products), Mulesoft (3 Products), ̶D̶e̶l̶l̶ Boomi, Workato, Integromat, Zapier as they offer trial tiers and they have already invested millions on the decisions you have to make.
First question is who is the audience…develoeprs, low-coders, no-coders…look at mule with their 3 anypoint products anypoint studio, flow designer, orchestrator…all using the same underlying tech but presented differently…
Secondly design time testing is soooooooooooooo important. Be able to test the transformation at design time instead of running it and hitting and hoping…this keeps n8n support lean as transforming data is a huge drag on support calls, secondly introduces self learning at a different level. I cant emphases this point more.