It doesn't add any value, compared to Chrome and does a very bad job at selling itself.
Find anything instantly -> Chrome does this already.
Effortless tab management -> Someone's favorite plugin gone native, I don't need or want this. Does CERTAINLY not belong in a raw browser.
Built-in ad blocking -> A very little bit useful. Does not belong in a raw browser though.
Fast and efficient -> Dubious claim. How did you measure it?
Open-Source software -> I don't care.