I'll be able to chime in on the F25 brakes in a week. I do recall the E70 and even my 335is felt like a soft brake pedal when new. After a few 100 miles on the clock, I did a bedding in procedure with the E70 which helped a lot. Those brakes now feel incredible when stopping a 5200 pound SUV. But its rotors were much larger than the F25.
Simply do a half dozen hard near stops in a row from 60ish and then give them time to cool down before parking. That definitely helps in the bite department.
See detailed instructions here:
http://www.zeckhausen.com/bedding_in_brakes.htm
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2020 X3M non-comp, Alpine White over black : Exec Pkg, ventilated M Sport seats, 20"s
2020 M2 Comp, Sunset Orange/Blk: Orange stitching, DCT, exec pkg, bicolor rims
Gone '18 M550i, '16 X4 M40i, '15 M5, '13 X3 35i, '12 335is, '11 X5 50i, '09 Z4 35i, '08 550i, 06 X3, 06 650i, '02 M5, '99 540i