It works well with Mass: the 7:30 congregation can make it in plenty of time to the study and the 11:00 congregation can get to Mass in plenty of time. Of course, Bible study does not replace Mass.
A daytime offering allows everyone to come without concern for traveling in the dark.
Breakfast is available from some group almost every Sunday, so you can pick up something to eat before (bring it with you!) or after.
Childcare is available so parents with youngsters will be free to come.
Bible Study is a great start to the Lord's Day when we are to focus on God and family.