Some people like tags, others use notebooks - they're really quite similar when you think about it, like Gmail's tags are basically folders (in fact that's how they're managed outside of native gmail). Some people like one giant bucket and use pure search to find what they want. It depends on your use case, and your style. I prefer a mix of notebooks and tags, actually tags are losing their usefulness for me. An app can't be everything for everyone, and there are usually workarounds; if not, try another tool.