The interface of this product was very intuitive for me to use as I am not familiar with any other Ppm tool in particular or PM tools period! It has been easy using all aspects from scheduling tasks/activities through managing submittals & change orders along wtih tracking progress against milestones. There are no downsides that we have experienced so far but would love it if they could improve upon some areas such as adding more templates within certain departments like electrical design etc., This program helped us keep track off our work load. Also allowed my team members access via WBS's instead having them emailing back n forth about issues during construction phases.