The best thing about this system in my opinion would be that it has an amazing customer service department who will help you out whenever needed! I have been using perkasoft's software since last 1 year now but as far i know nothing much new or improved except some minor bug fixes here n there which they fixed within few days itself so no issues at-all from me regarding bugs etc..
Just one point though - sometimes when we log into the site (perkascamp) after 5/10 mins everything gets freeze up again like old browsers do!! So just keep your patience :) And also if ur not familiarized well wth its functionalities u might face problems later while going live. For example what happens once i click "add perk" button? Doest show anything till next page load?? But anyways good luck guys :). We were looking forward towards having something similar kind of website wherein people could upload.