I've never had that issue to be frank. I use it on my laptop, my desktop, and my phone, and sync has been instantaneous and problem-free. I did face some issues

I've never had that issue to be frank. I use it on my laptop, my desktop, and my phone, and sync has been instantaneous and problem-free. I did face some issues with files blocking the sync operation, but that was fixed a while back. One of the best features you get with OneDrive is full Office integration. You can either access your documents using Office Online, which are full-blown browser versions of Office apps, or you can open your files in Office on your computer. Changes you make to the document are live synced and versioned, so it's great for collaboration.