Time ago (maybe 5.4?... Dunno actually) I tried BTRFS with a fresh install of Sabayon in one partition: performances were worse than EXT4... Maybe now BTRFS improved a lot, who knows? BTW you can convert an existing partition EXT4->BTRFS: EXT3/4 to BTRFS
When I became the sun, I shone life into the man's hearts.
He mentions in that review that he does not have any Proxy Settings page in System Settings > Network Settings. To get that entry back, you need to install kde-base/konqueror. Must have slipped through the net when the SL developers were putting together SL 6.