The former Chelsea midfielder is yet to catch fire since his January switch.
"I am happy at the club, very happy," Mata said.
"I am enjoying my football, I am getting minutes on the pitch, I am in a very, very big club and I hope we finish the season well.
"David De Gea has helped me settle, the same with Chicharito (Javier Hernandez), (Antonio) Valencia, and Rafael, they all speak Spanish but everyone there has helped me.
"People like (Ryan) Giggs have been here for many years and there's (Wayne) Rooney and (Robin) van Persie, they have all treated me phenomenally well."
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