I have used X1 for many years, and I have never had any problem, it finds more than I want for sure and faster than I can type. There is extensive control over which files and extensions it will index. I have tried others but they all fall short compared to X1. Also X1 is a mature product, and the company typically offers no-cost updates a couple of times a year, and they have done this for many years.

And I have never had a computer problem traceable to X1. Thumbs up!