The User Overview Tab is the best place to get detailed information about a user in terms of their:
Workday length and week start
Hourly rate - For Time & Materials projects
Booked legal leave days - Out of the total ones, plus unpaid ones
Monthly performance - This represents the percentage of total hours tracked from the maximum available hours (workday length multiplied by number of work days) for a given month up until todau.
Timesheet - Displays the time tracked by each user for a given month.
This way, there's no need to create a report in terms of the user's attendance as all these details are available at a glance.
NOTE: To drill on more user info, please generate a time report