I had a major falling out with my previous blog client, ecto. It destroyed about 60 or more entries in my private journal, going back to 2003. (After some serious digging, I was able to restore most of them from backups, all but about 9 or so of the entries; I’m still working on it.)
So I was looking for a solution, and tried MacJournal, which I thankfully already owned a license for. So far it is working well. It is not really a blog client per se; it is intended as a journaling app, as the name suggests. But it can sync to a blog, so is serviceable in that way.
I currently working to sync MacJournal with this blog as well; but there are some technical issues at the moment. [Edit: It worked. There was a badly encoded em-dash character in one of my old posts. The free W3C Feed Validation Service helped me find it.]