Are you familiar with him beyond the 41 ypp average? Great hang times? Great at pinning the opponent inside the 20?
41 ypp alone doesn't make a "great" punter unless being in the top 81 is considered "great" as it appears to be about the middle of the pack?
FBS Leaders - Punt Average - CBSSports.com College Football Stats
Well, in further response to this.... some stats:
2014: Not posted on MD's website, but 84 punts for 3487 yards averaging 41.5 yards. If anyone can find more specific stats feel free to add to this.
2013: Punted 75 times for 3063 yards averaging 40.8 yards, 18 pinned the opponent inside the 20, 7 inside the 10, and 20 were fair caitches. So 1/3 of his kicks were inside the 20 or better, and of course knowing Maryland football some of those kicks were probably deep in their own territory. He made a 64 yard punt (career long) against West Virginia, a 61 yarder against Clemson, and a 60 yarder against Boston College.
2012: Punted 75 times for 2974 yards averaging 39.7 yards. 15 of those punts pinned the opponent inside the 20 and 17 were fair catches. Against William and Mary he had 4 punts go for a total of 212 yards, or an average of 53 in one game, one being a (at the time) career long of 60 and one pinning them inside the 20. He definitely had less impressive stats this year, but he also definitely seemed much more consistent in 2013, and presumably was even more so in 2014.
Overall he seems to get better and better every year, and I believe he will be a valuable addition to our team and could possibly help us win close games if he's able to control the field position battle. His stats/history say he should be even more consistent this year.
Nathan Renfro Biography - Maryland Terrapins Athletics - University of Maryland Terps Official Athletic Site
As an edit and afterthought, in reference to the number of returnable punts he made, our punt coverage unit will be much better, faster, and more talented than Maryland's so his stats should improve in fair catches as well.