Today I am a CCIE #59458 and I could not have done it without the material and instructors at Internetwork Expert. I walked in to the lab exam confidently and can honestly say that the INE material left me well prepared. There was nothing in the lab that we had not covered in the workbooks. I also listened to their audio lectures while driving to-and-from work. I also read a lot of blogs for more in-depth explanation on various topics written by the instructors on the INE website. All of their materials are very nice, thorough and comes with precise explanation. I was really impressed by the amount of hard work the instructors had put in preparing these products. I'm very thankful for that.