[i_s]

I thought so too, at first, but now I'm really down on it. Ecto Changesets work fine for flat data, but when you have to deal with nested data, it becomes a nightmare, because you have to use these special functions to read and update the data. Doing that in a nested context just gets really clunky, especially coming from Clojure, where I would just do something trivial, like

    (assoc-in changeset [:children 1 :title] "New title")

[sooheon]

Clojure sets an unfairly high bar for data manipulation with core, transducers, libraries like supdate and specter.

[ch4s3]

That is indeed a bit of a pain point. From what I understand, it's a bit intentional and the library authors want you to prefer flatter data structures. Now of course not all structures CAN be flat so you can hit a bit of an impedance mismatch. However, I think Ecto is amazing for more common (for me at least) cases.