MNpublius.com

From the Strib (emphasis mine):

By day’s end, with about 18 percent of the vote recounted, Coleman continued to lead Franken — but by only 174 votes, notably narrower than the unofficial gap of 215 votes at which the recount had begun. Franken’s gain owed much to a swing of 23 votes in the Democratic stronghold of St. Louis County — the result of faintly marked ballots and older optical scanners that failed to read the marks.

But, there were a notable number of challenged ballots with Franken reps challenging 123 and Coleman reps challenging 146:

If that pace continues, challenged votes could wind up being a major factor in a race where the margin is down to hundreths of a percentage point. Challenged votes will be set aside until mid-December, when a five-member state Canvassing Board will review them individually.

MN Indy also notes a point that may be of significance:

Minnesota’s most populous county hand-tallied at a rate far below the rest of the state: Hennepin County’s manual recount of barely more than 1 percent of ballots cast had Coleman losing seven votes and Franken gaining one.

All in all, however, it seems as though the first day went pretty smoothly given the immensity of this endeavor. We, of course, eagerly await 8PM today when the next round of results will filter on to the Secretary of States unofficial reports website.