I'm not entirely sure of all of Michigan State's records since and before he got there. But they earned the title Mike Hart gave them before Dantonio got there. Since, they pulled out 4 or 5 straight wins over M*ch*gan, won a share of the Big Ten championship in 2010 (they probably should have gone to the Rose Bowl that year), they won the Big Ten Legends division in 2011, I don't know what they did in 2012, and went 12-1 in 2013, winning the Rose bowl and beating Ohio State, and I would argue that they probably should have had a #2 ranking in the final polls. (I don't remember why I'm thinking that. I know they were #4 or #5 and they beat #5 or #4 Stanford, and #2 Auburn ended with 2 losses - who was #3?)
Anyway, I consider that resume pretty darned impressive.
Dantonio has had some good wins, but also some very unimpressive season results the same.
07: 7-6, Lost at home to Northwestern, lost to Michigan at home, and lost to Ohio State, lost the Champs Sports Bowl to Boston College
08: 9-4, lost to Cal, blown out by both Ohio State (45-7 at home), Penn State (49-18), and lost the Capital One Bowl to Georgia
09: 6-7, lost to CENTRAL Michigan at home, lost to Minnesota, sccraped by Iowa by 2 points, and lost the Alamo Bowl to Texas Tech
10: 11-2, didnt play OSU, Conference Co-Champs, destroyed by Iowa (37-6), embarassed by Alabama in the Capital One Bowl (49-7)
11: 11-3, blown out in South Bend 31-13, blown out in Nebraska 24-3, lost the B1G Championship, beat Georgia in the Outback Bowl
12: 7-6, Crushed in South Bend (20-3), lost to OSU and Michigan, lost to Northwestern, beat TCU by one point in the BWW Bowl
13: 13-1, first great season. Beat Michigan, Ohio State, won the conference, won the Rose Bowl.
I would say with 7 years in, Dantonio is 64-29, three confrence titles (1 split), 3-4 in bowl games, and only one appearance in a BCS Bowl. These are records that will allow him to stay at a program like Michigan State that isn't known for beinga top 10 team.