It looks really nice, and I also like the column navigation. But what I’d be missing is dual tree nevigation which is something I use a lot. My explorer of choice is Directory Opus [0] (though it’s costs quite a bit more) which I have been using for almost 10 years now. Besides dual-trees, it also supports soft-locked tabs, something I never would have asked for but couldn’t live without now. SFTP is a nice bonus.

[0] https://www.gpsoft.com.au/