I like that it's very customizable through modules available from different vendors - this makes customization easy as well since we can easily add new ones when needed without having to wait until they release an update (which could be months).
We are able to customize our own processes within pilotERP which has been great because there isn't another tool out there yet where everything works together seamlessly so no one department knows what everyone else does. Also not much dislike about anything but maybe being somewhat outdated compared to newer versions. If your looking into something simple then go ahead otherwise if its going to get complex just stick with SAP Business One instead unless you have some specific needs that only pilot will help solve.