Sterling's Coptic Paradigms

Any thoughts on Gregory E. Sterling (of Notre Dame's) Coptic Paradigms: A Summary of Sahidic Coptic Morphology (Peeters, 2008 ISBN : 978-90-429-1872-6)?

-Kushana

Honestly, if one has learnt or is learning Coptic, then one will already have a grammar--not a big, bulky reference grammar like Bentley Layton's, but an introductory grammar. And every Coptic grammar is going to include paradigms, plus other useful material. So I found myself asking "for what audience is this booklet of excised paradigms designed?" Given the number of other recent, compact, very decent introductory grammars to Coptic, I don't really see the point of it.