After I got done teaching my theology class tonight, I took a look at Comet Holmes; it was very easy to find. It looks like a small dandilion puff, especially through a telescope (I took a look through a small three and a half inch Meade Maksutov-Cassegrain when I got home, using a 26 mm Ploessl eyepiece). My wife Ruth enjoyed looking at it too.
Sky and Telsecope magazine has sky charts that help locate it. It is easy to see all night long.