Do I need to re-index after I have installed Last Comment?

No, a re-index is not necessary for the Last Comment Custom Field to work.

Can I control the size of the last comment displayed?

Yes, you can modify the maximum length of the content in the custom field via the configuration page.

Do I need to create a custom field to display the last comment?

Yes, you need to create a custom field of type: Last Comment and add it to the appropriate screens in order to view the last comment in a custom field.

I think I found a bug. What do I do?

Please report all bugs at: https://capitalplugins.atlassian.net/browse/LCCF