I feel rather cheated after having spent $21 AUD on a subscription to a product that, based on my experience with the desktop version, would be highly functional. Of course I was prepared for a few bugs, given that Mathematica Online is still in beta, but I was not prepared for the astounding dearth of features, and the baffling errors produced when attempting to run even the most basic functions e.g.:
It's pitiful. Also pitiful is the lack of customer support. I used Mathematica Online for all of a couple of hours before shutting it down in disgrace, and cancelling by subscription soon thereafter. I contacted Wolfram about refund, but they simply ignored my request. Consequently, my view of the company has deteriorated severely, and I can't see myself using any of their products in the future.