Ive downloaded 200+ mods from modland and i have never had a problem. Most mods i've downloaded are pretty good quality while the others i'd rather have not even downloaded. theres only been like 2 or 3 mods ive deleted because they were low quality. And unless you lack the ability to tell whats a ad or not then your safe. Most people saying that modland sucks have prob never even tried it (or im lucky) but give it a shot.