It uses proper HTML list markup, which is more standards-compliant and more accessible then separating list items with <br />.
This template can be used with or without {{endplainlist}}. It is intended to replace {{Unbulleted list}}, which performs the same function, but in a more cumbersome manner.
indent – indents the list by a number of standard indents (one indent being 1.6em), particularly handy for inclusion in an indented discussion thread.
Example: |indent=2
style – adds CSS style options. Complex styles should not be used in articles (per wp:deviations) but may be acceptable on user, project, and talk pages.