Be aware, this is neither an IDE nor a professional tool by any stretch. You can connect to servers, edit files, and theres a built-in ssh terminal. Thats it.
Theres no way to search all the files in a local project, no way to find function/class usages, no way to go to a function/class declaration, no way to debug (remote or otherwise), no database integration...
Functionally, this has almost nothing in common with the desktop version of Coda, let alone an actual, professional tool like, for instance, IntelliJ or PhpStorm.
Until Coda (or Textastic, Codas closest competitor) gets some of these features... project-wide file search at the very least, anything remotely resembling professional web development simply wont be possible on iPad.
Veraxus about Code Editor by Panic