Grammar in Use Intermediate

i have used this texbook for a few years now as an aid in teaching English as a second/foreign language. While teaching EFL in Russia (see "39 Months in Siberia"), I was plagued with horrible textbooks - both Russian & British publications - that needed constant correction or explaination. After discovering "Grammar in Use," I was finally relieved of the agony of bad books. "Grammar in Use" (intermediate) can be used with all levels of students, less those just beginning the study of English. It's concise and easily understood to the point that many students can use it on their own. The accompying pronunciation disc is done quite well, too. The only negative issue I can find is the section on conditional case. I have always had to give my own explaination of these 3 cases, but after that, the book takes over nicely. In a nutshell, it's the best grammar book I have ever used, and I highly recommend it.