Not for me, I do like Mata but I feel that he does not offer enough work rate, defensive contribution or end product. He obviously has fantastic technical ability, but if you compare his impact on games with other teams primary playmakers (Hazard, Silva, Coutinho, Sanchez etc) I just feel he doesn't offer enough.
Work rate and defensive contribution, I can agree with.
But not with end product. In fact, his production is his strongest element of his game. He is not Silva who dictates the tempo, or Hazard who runs past players, or a Sanchez who will do the x-factor, but Mata gets goals and assists.
11/12 (Chelsea, 40(6) apps) - 8 goals, 16 assists
12/13 (Chelsea, 41(8) apps) - 16 goals, 20 assists
13/14 (Man Utd, 14(1) apps, in a generally poorly performing team) - 6 goals, 4 assists
14/15 (Man Utd, 27(6) apps, right wing) - 9 goals, 4 assists.
Granted his performance levels have decreased but that is a reflection of the way we use him. In his central AM position that he played for Chelsea, he was extremely productive. When you consider how we've used him and the number of games compared to the below, it clearly hows he is productive.
David Silva:
10/11 (City, 30(5) apps) - 4 goals, 7 assists
11/12 (City, 39(3) apps) - 8 goals, 17 assists
12/13 (City, 32(3) apps) - 4 goals, 8 assists
13/14 (City, 31(2) apps) - 8 goals, 10 assists
14/15 (City, 37(1) apps) - 12 goals, 8 assists
Eden Hazard (only including Chelsea years):
12/13 (Chelsea, 40(7) apps) - 10 goals, 14 assists
13/14 (Chelsea, 40(4) apps) - 16 goals, 7 assists
14/15 (Chelsea, 45 apps) - 17 goals, 11 assists
Coutinho:
13/14 (Liverpool, 28(5) apps) - 5 goals, 7 assists
14/15 (Liverpool, 36(5) apps) - 5 goals, 5 assists
Sanchez:
14/15 (Arsenal, 41(1) apps) - 19 goals, 9 assists
The statistics don't paint the full picture, but what they do show is Juan Mata is EXTREMELY productive as an AMC/10.