I think it’s pretty and although it would be somewhat tricky, I do think it’s “gettable” - really the S for Sh and the random o are the only “weird things” there. And I think people can get used to S saying SH - not just [name]Siobhan[/name] and [name]Sinead[/name], but also the very familiar [name]Sean[/name] have kind of set the stage for that.
It’s also just visually appealing, it kind of “looks like” [name]Sophia[/name]/[name]Sofia[/name] and [name]Fiona[/name] which are in right now.
I will point out that [name]Shifra[/name] is actually a totally different name with a different history. It’s a Hebrew name for a very positive bit character in the Bible - women in the Bible are often bit characters : D -
She was one of the midwives who delivered [name]Moses[/name], and was under instruction (together with the less-appealingly-named Puah) from [name]Pharoah[/name] to kill him, but they both defied [name]Pharoah[/name]. If you’re at all Jewish or [name]Christian[/name], this is pretty awesome.
If on the other hand you’re totally secular, at least she’s a positive character. BUT I do think people who know their Bible well would assume you were at least mildly religious (and, for that matter, more likely Jewish than [name]Christian[/name], I think) upon hearing it. On the other hand, I think plenty of religious people don’t obsess over names like I do, and wouldn’t recognize it.
I like both Siofra and [name]Shifra[/name], and of the combos your’e considering prefer either with [name]Jane[/name], although [name]Summer[/name] is fine.