Jones was impressive in victory over Aston Villa.
"He was outstanding tonight," Giggs told Sky Sports. "Phil is one of those players who's that good he can play midfield or right-back, but I think tonight you've seen his position. Every time he plays at centre-half he's outstanding."
In just two seasons at Old Trafford, Jones has sampled searing highs and sapping lows, and Giggs says the former Blackburn Rovers defender will benefit from a well-rounded education.
"He's such a young lad, that he'll only get better and better, and experiences like last year and this year will help him," said the 39-year-old. "Disappointment can also help you in some ways. There are a lot of young players in there who have learned from last season and have gone on and played really well consistently this season, which is hard for a young player."