In the words of JHS Pedals:

The Morning Glory is undoubtedly our most well-known overdrive pedal, winning more awards and receiving more accolades than any of our other designs. We worked hard to make it one of the most transparent overdrives out there. When you want to add some mid- to low-level grit to your crystal-clean tone, use your Morning Glory.

When you want to boost a crunchy tone into thicker sustain, use your Morning Glory. When you need to add tube-like touch response to a less-than-ideal amp, use your Morning Glory. When you need to switch between two gain levels on the fly...you get the idea.