I love to use v3 during our Sunday/Wednesday Bible classes. The last couple weeks I have used v4B3 and this morning - during class I was asked to look up a passage. Typically, I have the answer for the question in about 2-5 seconds. The simple search I needed was "seven spirits". It took well over 10 seconds (don't remember what the exact time was....more focused on the study). When the teacher asked for it I didn't have the answer and asked him to move on with class. That was frustrating. In v3 it took less than 2 seconds.
For these simple type searches v4 is just simply not cutting it when I am in need of simple search results.