Most impressive & Least impressive cloud computing services...
Cloud computing services is open to use for quite a long time, the first one I used and still in my mind is "Dropbox" and I do believe that it still be the most impressive one. It can link and share with everyone around the world by using email "any email" - which mean that if you use Hotmail and your friends are gmail, you can share with them, however for some cloud service provide will be able to share only with who sign-up for their services. Moreover, it can be use across the OS system such as, Window, Mac, Linux and all the existing mobile OS. You can also share it to public as you open the link and share it to the world. The speed of Download and Upload the data is also fast and save time.
The least impressive one for me is the Onedrive by Microsoft, even with the data format is the same as on window and online, but the speed to share and open the file is very slow, or sometimes it occur an error.
If compare directly to the cloud service in email provider, I voted for Google Drive, as it can edit work together in real time and keep track on who doing what inside the cloud. Furthermore, it can auto-save which is very useful that you will not need to worry about the technical problems.
Google Drive also provide many functions compare to Onedrive...
But still Dropbox is my most impressive cloud computing service...