not only Apple and Google, compared to Office365 for $99 per year which includes 1TB Onedrive + full Office for up to 5 users, i don't see how dropbox is worth it nowadays
It is not in the same league as Dropbox.
Also, it's likely that your past experience is with the old OneDrive for Business client. Last year the normal OneDrive client learned to sync OneDrive for Business data, and reliability and performance improved quite a bit.
(I worked on OneDrive until last summer, but I don't currently work at Microsoft.)