I like that you can have multiple sites for different projects in one place, it's easy to edit and update information, and you can do all of this online from anywhere at anytime! There isn't really anything specific i don't like about PMN but maybe some of the features could be more intuitive/easy to use on mobile devices (i'm talking primarily iOS). We've been able to access our PMNs through our web browsers or even using email notifications when there are updates available. It is also great if we need to check up on something as opposed to calling someone over the phone or going into office. Also, having multiple punchlists under each site makes managing them much easier than trying to keep track of everything by hand.