Interesting, Hugh. I have Daedalus, but hadn't realised it syncs with Ulysses. Hm. Tempting...

Mind you, the iOS version of Scrivener will be seriously tempting, once that appears. My only beef with Scrivener is the peculiarly limited search function - but that may not apply to the Mac version, which - so people say - is supposed to be rather more complete than the Windows one.