When Lion became available I downloaded it immediately. I also extracted the install DMG and burnt it to a DVD and a bootable USB stick (thank God).
I have a new iMac 2.5GHz i5 base model (500GB HD 4GB RAM) and I was using Snow Leopard and my Mac shutdown quickly, booted up quickly, and I never had any glitches in the GUI. After upgrading to Lion my system took forever to bootup and shutdown. Even if I don't tick the box to "Reopen windows when logging back in". Sometimes it takes 2-3 minutes to boot, and 1-2 minutes to shutdown. I timed SL 10.6.8 before upgrading and bootup was about 40 seconds and shutdown was about 5 seconds to instant.
Also, after Lion was installed, all the page swipes in Safari and from full screen apps was extremely glitchy and sluggish. Sometimes the screen would get stuck between the apps or an app and desktop. Sometimes the iMac would just plain freeze with the beachball of death. So I thought I had something leftover from SL that was fudging my system. So I booted from the USB install image I made, re-partitioned the HD and reformatted it (I re-partitioned to get rid of the hidden recovery partition and the bootcamp partition). Then I re-installed Lion as a fresh copy. I re-installed all my apps but didn't use bootcamp or any VMs yet.
Now after a clean install, my GUI is no longer glitchy or sluggish. Transitions between fullscreen apps and the desktop is smooth. However, my shutdown and startup issues still remain (and are a little worse). If I tell the computer to shutdown, no matter I click "reopen windows" or uncheck "reopen" windows, it can take 1-2 minutes to shutdown. Also, after being off all night, when I boot my computer, sometimes it will come to the login screen and ask for my password (but I have set it up for automatic login and not to prompt for password on screensaver or wakeup also). I also did not encrypt my drive. So I cannot figure out why it asks me to login. After I give it my password and sign in, the menu bar is not translucent and the airport does not function. Then I must restart Lion and everything is okay again (except it takes 2-3 minutes to reboot again).
I already tried repairing permissions, I downloaded the beta for the latest Onyx last night and cleared out all the caches and told it to verify and rebuild all the scripts. Only about 10 things were repaired in the permissions list. The disk passed verification, and I am not getting any mysterious messages in console. So what is going on with booting and sometimes requiring me to login with a password and booting into a system with messed up menus and non functional airport? I don't want to start my iMac, login, and then restart every time I want to use it.
I have been working with Macs since OS 8 and I have currently have 2 PPC Macs running 10.5.8, and 2 Intel Macs (one is still on 10.6.8 until I solve this Lion problem). I have even played with hackintoshes on my netbooks and in VMware before. I am pretty versed in OS X, but I am at a loss to figure out what is going on with Lion. I don't see any unusual messages in the console or any error messages. When on the phone with Apple care they insist the shutdown issue is not a problem. But the startup concerns me most, since it asks me to login, the I must restart anyways to get it back. It acts like a Windows sytem waking up from hibernation and not loading all the proper drivers.
Sorry for the long post, just wanted to be concise about the issue. Anyone have any suggestions? Any help is much appreciated! Thanks.