Not that google translate adds much value but apparently he is a Volante mixto - or joint steering wheel >.>
It midfielder playing alongside the central midfielder in 4-4-2 or 4-2-3-1 . Like his sidekick, try to recover the ball for his team, but also have to join the attack to reach goal positions.
Technicians in this position often choose dynamic players, capable of cutting a pass near his own area and reach the opponent to define with a shot or head-and with good technique to pass and shoot the ball. Frank Lampard and Steven Gerrard have excelled in this position for Chelsea and Liverpool, respectively.
Whether he is any good, well what do I know :P ?