The major reason for me is their Linux support. I don't think any mainstream provider offers linux support. I also feel their sync is better than both One drive

The major reason for me is their Linux support. I don't think any mainstream provider offers linux support. I also feel their sync is better than both One drive and GDrive. They probably sync the deltas most affectively. Given that this is their only important product, it s bound to have the attention of their best engineers. You can't say the same about Google or MSFT.