From March 27th, 2014 to July 16th, 2016, 67% user give 5-star rating, 33% user give 4-star rating. for performance-HTML chrome extension.
Great tool !!! To see true data you have to delete browser cache and do an "hard reload" - You can do so by hitting the F12 button and right clicking the refresh button!
Useful too! I noticed that the information under "DOM structure and Elements" is correct, but the "Website Speed" information is in-accurate.
Great utility to see performance metrics on a page.