your pictures link. Hi & welcome to Gardenweb! Those damaged spots look mechanical. When a leaf is bent, the crease can turn brown. As far as light goes, Pothos want what all plants want, as much sun as you can provide without inducing sunburn. That can vary wildly depending on your location (elevation, latitude) so it might help for you to get more specific advice by including some location info in your profile (which will show up next to your name when you post here.) There is info about Pothos recently here and here. In particular, I would draw your attention to the info about how drainage holes are not usually at the true bottom of a hanging basket. Staking can result in larger leaves, and is a primary topic of this discussion. Having some live plants is good for improving indoor air quality. The faster they are growing, the more they will do in that capacity. Your plant looks like it could use a shower or to have its' leaves wiped gently with a damp cotton ball to remove dust.

Rhizo 1 - the rest of the plant looks really nice with the exception of just a few leaves. Now that you mention it, it does look like someting could have happened to these leves while they were still rolled up. That would explain why the holes go in such a straight line. Hmmm. He's hanging, so physical damage is unlikely. I'm kind of thinking it isn't a pest because the vast majority of the leaves look fine. Weird.

You need to get it out of the miracle gro moisture control soil. That is the only Miracle Gro I have ever had trouble with.

Otherwise known as Devils Ivy...Right? If so, what do you use for a trellis? Did you buy something, make something? Mine isn't all that big, but I don't want it hanging over the pot (I have cats). Right now I'm using a marshmallow metal roaster thing...and a small Bamboo curved trellis.