I honestly have no problem with Rafa to Everton which may seem strange but his family live in Liverpool and he calls the city home so good luck to him, I do think the derby will be tougher to win now with his tactical nous.
Same here, he was sacked and is entitled to work wherever he wants, if he had left to take a job there, it would have been difficult to swallow, but given the circumstances, I don't see any issue.