Having used WAF extensively in large legacy projects, one of it’s large problems is that it isn’t particularly batteries included, and relies on a lot of custom

Having used WAF extensively in large legacy projects, one of it’s large problems is that it isn’t particularly batteries included, and relies on a lot of customizations, and doesn’t have a lot of rails so it’s really easy to break it’s reliability guarantees. And having a unreliable build where one is never sure if a problem will go away by deleting intermediates is super frustrating.