This album was, curiously enough, my first twee disc. I have some attachment to Pants Yell! because of that (although I am not terribly fond of 2007's Alison Statton).
Songs for Siblings is pretty simple, as twee goes (which can be an extremely positive point). You know what to expect-- but that makes it no less enjoyable. It's a pleasant listen with decent melodies, and I've a fondness for Andrew Churchman's vocals. Whether you fall in love with the album ort not is entirely up to you, but I can only imagine what sort of cold heart it would take to dislike it.