Having used BeOS back in its halcyon days of the mid-to-late nineties and a as somebody that maintains an active Haiku installation (albeit under VMWare) I have

Having used BeOS back in its halcyon days of the mid-to-late nineties and a as somebody that maintains an active Haiku installation (albeit under VMWare) I have to agree with you. It is definitely lacking in the browser department (which seems so crucial to most people) but beyond that, it’s a very dependable and responsive OS with absolutely modest hardware requirements. (I also have a working BeBox 603e 133 MHz but I use it very rarely because I’m very concerned about the health of the IDE HD.)