@Raj Kolagotla@I think you have missed Deleted point. MS Search is fine, but our frustration is about the lack of Enterprise features ( metadata search, content types, exposure of the information architecture, etc) in Modern Search. Without these is **bleep** hard to get bigger organisations to embrace Modern; they don't want another smart search, they want THEIR smart search.
Wicus van den Berg and I have been trying to get a response or even acknowledgement from Naomi Moneypenny ever since the original Modern Search blog; it's disappointing that no one can be bothered to reply sensibly.
Meanwhile, Microsoft Search is very interesting. I have an article on it being published in PC Pro next month. However it has the same problem, in that it works fine as a personal such, but scales poorly to sophisticated organisations, despite since of the nice signposting it supports, since it also lacks filtering and search score based on the organisational Information Architecture.