I'm honestly a bit bewildered. So we're likely signing a player in the best years of their career. They're experienced in the league and have won titles and played relatively regularly for Manchester United. That suggests the player has something about them.
Evans like Cleverly has suffered the bad rep from that season under Moyes. The new manager has come in and is throwing money at a wall and hoping it sticks.
The 7/8million fee reported is a little expensive for a player out of contract in a year BUT the market for footballers, particularly English players is absurd.
I don't see how people can complain when we're signing a player of reasonable quality who could feasibly compete for a first team place in a position which desperately needed to be filled. For a pittance in this inflated market. And we have the player for his best years.
TLDR; Evans will be decent, people need to lighten up.