I've used BT2 and BT3 for the past year and a half. BT3 actually made me want to change from Ubuntu to Slackware as my main OS. I'm not fond of the Ubuntu/Debian package management system but I can see it reaching a wider audience.
No matter what, I'm excited to try out the new release. Thank you devs for your hard work.
BTW, I believe you can still install lzm's if you'd like.