I am confused whether to purchase hard copy or soft copy of the CT series provided by the IAI. Someone please tell me about the quality of binding and if possible post an image of the same. Thanks in advance.
The quality of paper provided for hard copy is excellent. It'll cost you multiple times more to reproduce the same paper quality printing the soft copy.
Without a doubt go for the soft copy. You can get it printed two sheets a page for like 500 Rs. Two sheets to a page is the most manageable format. But the big plus is that you can study on your ipad or kindle too.
Does depend what you prefer to use - I've bought both a couple of times and to be honest, ended up never using the soft copy. On the one occasion I did want a soft copy, I got permission from Acted to scan the notes and fed them through the bulk scanner at work.