I've worked with corporate SharePoint and never heard any complaints about downtime; I've even manage a messy SharePoint environment that was left to "rot" with

I've worked with corporate SharePoint and never heard any complaints about downtime; I've even manage a messy SharePoint environment that was left to "rot" with insufficient maintenance (both on SharePoint and on the servers) and it never went down. Where we did have big problems was finding developers to work with it; we actually found a few that had worked with it but deliberately avoiding listing it as a skill because they did not want to ever work with it again. (in Sydney a few years ago)