The most amazing thing about mobscrolle was how easy it made our job of developing applications with touch friendly interfaces by using javascript! I mean, just in one page we can have multiple input fields to receive user inputs which makes life easier while designing an application or website that needs smooth interaction between users (web/mobile).
It's not bad at all but you need some experience before starting working as there are many features available out-of box like auto complete textbox etc., Also if your app requires any customizations then also don't expect much support from them because they will charge very high amount compared other js libraries i guess this might be due their popularity so better choose wisely!! We used its autocomplete feature where people could easily search items online without having internet connection through mobile devices such us Android phones / tablets & Blackberrys!