There's talk that it might reach 6th magnitude. For you non-astronomers, that's the faintest one can see in a very dark location. The comet is a few degrees from Spica (I remember that because Spica would have been a cal star in our abortive BDPR observation of DI), so finding it with a set of binoculars shouldn't be that difficult.
The best that we have had here the past few years is 4th mag. Of course, in the summer even the moon is hard to spot and that is -16th mag.