1911 coversion to the 460 rowland

I have a COLT MARK 5 SERIES 70 , and i was thinking of buying the conversion kit for it .what are some opions on this .HOW much more power does it give me,I should probably plan on reloading this ammo,as i am understanding that they use the same dies as a 45.And
what have you heard about reliability?THANKS.[:D][:D]

LET MY BIG 50 DO THE TALKIN FOR ME!!!!!!!