I posted about this tree before and this is mass flowering at its best, at least for this size. However, the best I have seen is a tree that was at least 4-5 m tall and with its dome-shaped compact crown, it was completely covered with pure white cauliflorus flowers at every node and the fragrance was simply overpowering.
I don't think anyone can ever forget such a tree after having seen it. To me, this is a must have tree in a fragrant garden.