Let's begin with the hidden attributes, where we see a fairly professional and loyal dude who's decent under pressure and unlikely to stir the pot.
The general stats indicate a better than average (though hardly world-beating) player, primarily right-footed, with a good reputation at home in Uruguay but little recognition worldwide.
Positionally (and here the zeroes are just that), he's a natural right back, an accomplished center back, and can fill in on the left in a pinch.
Mentally (and for the remainder of these screen grabs, a zero means "not specified"), he's slightly above average, highlights being work rate, teamwork, and determination).
Physically, he's quick off the mark with good lung capacity, strong but nothing too special in the air.
Technically, he's pretty middle of the road, not so hot on the ball and merely average (for a defender) at marking and tackling, the primary defensive skills. His heading is the most notable skill (as Chest observed in his intensive YouTube analysis), though below-average dribbling, crossing, and passing skills mean he's most likely to provide offensive help from set pieces.
Of course, I'm not saying any of this is meant to be taken as gospel, and I'll certainly form my own opinions when we get a first-hand look, but, like rob, I'll trust the FM researchers over a YouTube clip any day of the week.