If you're in the market for a tempered glass screen protector for the One, look into Orzly. I have one and have had no touch screen sensitivity issues whatsoever. The glass is crystal clear, and is oleophobic so it will do its best to resist oils and water that you may get on it, and anything that you do get on it along the lines of oil, etc. can be easily wiped off with a rag, shirt, etc.
This is my first tempered glass screen protector, and having used it for about 3 weeks now I can safely say that I'll never go back to anything else.