sucked before SL - sucks harder and deeper now
We've been running CS4 (Indesign and PS) on a 4 gig mini for about 6 months.
It was ok under Leopard - puked once in a while.
We've been waiting for SL for Exchange integration, so I jumped on the upgrade as soon as it was released.
Started having problems almost immediately.
Adobe apps would crash, hang on boot.
Checked and repaired permissions, which resulted in a no boot situation.
Took it to the Apple Store - they tried recovering data - failed epically, but blamed the file system rather than hardware.
Brought it back to the office, installed OSX to a flash drive, booted to it, recovered all my data except for some unrecoverable adobe preference files.
Recovering data took a while, so I moved the user to a newish Imac - Leopard 10.6 - started having problems there.
Read a post similar to one here about upgrade vs clean install, wiped the imac and installed SL clean.
Worked much better, but still a few crashes.
Put the user back on the mini, clean install of SL, CS4, Ilife, Iwork, all the auto updates.
Started having the same problems almost immediately.
Now, I don't know if it's hardware (Apple Store sez No - but they can't even master basic data recovery, so I question the value of their opinion) software, or interop problems.