I thought I had posted this before, but couldn't find it. Anyway....
We do not use MRP, we use the Reorder report.
Generally speaking it is fine, but there seems to be one strange quirk.
Any item that is on the reorder report that has a qty on B/O, the Line item for SO's has the correct qty on B/O or Q/C, but the total shown on the item number line above is always exactly twice the B/O qty!