Works great for what i needed and showed alot more that i didnt know about my battery. i downloaded it because i wanted to see the time remaining in the menu bar and i was a little put off reading reviews that it didnt when i thought it did. but after downloading it i found out it does show the time remaining in the menu bar. But you need to click on the lightning icon and then go to the settings gears at the bottom and then click the show option. There will be the option to show the percentage or the time remaining. Wala and ur done. I do wish i could do both the percentage and the time remaining but i can just set my normal battery icon that way. Overall Completely Satisfied.