I've just loaded rc2. I always try the latest versions, but I always wait until rc2. I've noticed the fastest boot time yet to first keystroke. Almost Chromebook level. Try that with the latest win and latest laptop. OMG! It's painful. I'm about to prep up the cottage laptop, and I'll see how this works.
ps. the old Acer laptop works great, but you have to go with 'make localmodconfig' if you want it to compile in this century. :)