It's the go to editing tool for most of the popular Instagrammers...I remember i had the app when it was .99 cents and hated it then they came out with the free version and now it's although, i usually mess around with 3 or 4 presets on it.
Yeah, I've seen Trashhand use VSCO in Lightroom. A lot of those popular guys have a preset that they use on pics giving it their personal touch. I wish I could find one and stick with it, but like you I use about 3 or 4 presets then edit the pics to my liking. Anytime I can download any free presets though I do.