The best feature about projectshare was its ease of use as it integrated with our Microsoft Sharepoint system without much trouble at all! I dislike how hard they make you work if there are issues or problems after purchasing/signing up for membership - but most customers have been satisfied by their product so far (especially when using MS PowerBI).
Integrating into existing systems which makes my job easier because i don't always know exactly where this information will come from initially; however sometimes we would like something different than what comes natively in share point / outlook etc.. But once things get set everything works smoothly afterwards :) Great service overall considering price paid compared other competitors out therre too!!