For my mind the main advantages to maptool are the infinite growth opportunities (no limit to library assets, maps, campaigns, etc) and the scripting options. But I also generally value full control over ease, if the "full control" option isn't too unreasonable; and although MapTool has a quite steep learning curve, it's far from unreasonable.
My status is surveying, idea gathering, and people-meeting, so you're probably fine. Hitting you up on Discord shortly :)