Dr. Daniel, M.D. wrote:
About my issues with Mountain Lion, the only third-party apps I had installed were Chrome (first thing I do is get a proper browser so that I can finish setting up things), iTerm2 (need a proper terminal to fiddle with settings and do things on my server via ssh), and Spotify (to listen to stuff while settings up things).
Are Safari, Terminal, and iTunes somehow "improper"?
Actually, I was refering more to system modifications. My EtreCheck tool is designed to list those because people sometimes forget about software that only runs in the background.
Sure, there may be some workarounds to get things better with ML, but seriously, I'm not paid to be a beta-tester, and if at 10.8.2 it still can't perform properly, I'm not going to be the one working 24/7 to get my laptop regain the lost 50% battery life if I can just wipe the crap and revert to Lion.
I am a paid beta tester and developer, just not for Apple. I can assure you there are no significant issues with 10.8.2. There are some poorly-coded 3rd party software that doesn't work well on Mountain Lion. Sometimes developers take short cuts just to get something working and never fix it to work "properly" because, technically, it isn't broken - until the next operating system version comes out that is.
When Lion was released people were also falling over themselves to reinstall Snow Leopard for the same reasons. You can search for old posts from myself and others who said Lion was fine (as Mountain Lion is) and accurately predicted that people would, in due time, be falling over themselves to reinstall Lion.
This morning, after having reinstalled Lion, I fired up Chrome with my local radio station in Flash, playing news while I prepared coffe and cereal, keyboard backlight constantly on (as I hadn't yet set up anything (I always set a 5-second timeout)), the screen at 50%. Remaining battery life was 7h30m. Same setup with ML was pretty much exactly half that.
Chome, espeically with Flash, is known to have problems in Mountain Lion. I suggest using Safari and the ClickToFlash extension. That way, you get a very similar browser that will first try modern HTML5 methods for streaming that media and only fall back to Flash if necessary. Even without Chrome, Flash is a total CPU and battery hog.