[@Ace of flames01]

That's all super helpful, thanks very much! As far as drawbacks for the character's power go...

As far as the limitations of [i]using[/i] his power, even if he's reinforcing himself with a "web-brace," he wouldn't be able to just plant his feet and slug somebody with super-strength. In order to generate force and momentum, he'd have to use his webs for swinging, sling-shotting, and spring-loading forces. He'd also have to keep track of a lot of things when swinging around or creating nets---where are his anchor points, how high is he above the ground, the arc of a swing, etc---so without the patented "Spidey-sense" I could easily see him getting overwhelmed in a situation with too many factors like busy streets, multi-person battles, etc.

For drawbacks on his power itself, I imagine he'd be required to eat a lot of calories, especially protein-rich foods, to produce large amounts of webbing. So rather than running out of "web cartridges," the indicator that he's running low on webs would be hearing his stomach growl, lol. Because the web comes from his body, it also means he wouldn't be able to wear certain types of armor and such. His webs could be dissolved by anything acidic or caustic like bleach, white vinegar, etc, and they'd be flammable. 

Would that work, or does he need something that's more of a "kryptonite factor" as a drawback?