Marta is not inspired by fman. The Action panel (I think it's called a Command palette in fman) is likely to be the only common thing between our products – and we both took it from Sublime Text. But it's not really important.

The "doesn't feel native" is not the main problem for me. I use a number of non-native apps (such as IJ IDEA) – and I'm okay with it.

fman is a just slow app without features. It was ok if it was in alpha stages, but why it is a paid product then? Come on, there's still no way to cancel the copy process! And you need to install a third-party plugin to swap panes. I wonder how you made such a small progress since the last year, considering that you work on fman full-time.