What I really like about it:
- Phone app now works properly as portrait mode. (no irregular auto-switching)
- Much more free rootfs.(90MB free with many apps and all repo's enabled)
- No more "More" icon in the lancher menu.
- HAM improvements. (type to search, update all button, no delay after uninstalling an app)
- No SMS option on non-mobile numbers.
- Seems to use less cpu during idle. (only Xorg uses like 3-4%)
- mscim + mscim-hangul (korean) input works better.
- Multi-tasking seems more responsive. (dunno. it just does)

What I don't like:
- MicroB is a little more buggy imo. Buttons don't always show up.