Well it works but it's like running on 3 pistons. It's a serious pain to set up, when the Dropbox client is updated you need to update the 3rd party standalone client which breaks half of the time, and you need to manually switch to either one or the other (if you have one 'official' and one 'pendrive' version). Oh and it messes with your icon overlays on Windows. Massive pain, I regret going Dropbox for Teams but I'm sort of married to our setup now. The way it works is not clear at all - I had issues similar to the OP's which required support to resolve.