Moving to lollipop on a nexus 7 - Don't do it

I was excited to up grade to lollipop on my nexus 7.  I did not have a good experience. I experienced freezing and locking. 

I did a factory reset and it became boarder line useful, but it stopped being able to charge.  It was taking ten hours instead of three or four.

  My nice husband reflashed it back to kitkat which is where it will stay until a major patch for lollipop comes out.