Well, I have to admit that I was a little nervous about going to see Lenin's body when I was in Moscow (never seen a dead person before). Standing in the queue, which seemed huge when we joined, I wondered if it was really worth it to go and see a dead guy. However, the queue moved pretty fast, and it was not long before we were going through security to get into the tomb. Security is pretty tight here, especially since it is free to visit the tomb. There are no bags or cameras allowed inside at all.
As I walk in out of the bright sunlight, the tomb seems pitch-black. I can't really see anything at all. Then, out of the darkness, I see the first in a series of guards. They look pretty creepy standing so still in the dark, and even more so since it was so light outside.
When you eventually get inside the tomb, Lenin's body is in the centre, lit up from all angles so he really stands out in the darkness. It is completely silent in the tomb out of respect, and every person spends a total of about a minute inside before they are back out in the sunlight of red square. After the tomb, you can walk around and visit the graves of other important people from Russia's past, such as Stalin.
Overall, Lenin's tomb was an interesting place to visit. However, if it was not free entry, I feel that it would be a waste of money, as you spend a fair time in a queue to get about a minute inside the tomb. Despite that, I still would suggest that people who have some time in Moscow go and visit it, as Lenin is such an important part of Russian history.