Previously I posted my list of integrated four skills English courses in this forum. Recently the Living English course drew my attention as I focused on its content.
You can explore the in-depth description of Living English course on: http://www.english-to-go.com/livingEnglish/index.htm
This four level course may appeal to many learners and teachers of ESL/EFL. It is an integrated skills course that practises grammar in thematic conversation units and trains listening comprehension, speaking, reading and writing skills.
It would be a good idea to assess (compare) the content of various ESL/EFL learning courses (presentation of material, types of practice activities and exercises, etc).