I would say it is because they are Independent Tech, not Big Tech, it makes a difference.
Big Tech only care about making money, and influencing politics these days.
Not saying Indie Tech don’t want to make money, that is the whole point of setting up a business, but at least the IceDrive team are open to suggestions, appreciate feedback and if they can make a product people want with multiple features and plans, then that customer satisfaction gets positive reviews, word of mouth, and that will trickle down to new customers which will get them established as a big player in the cloud storage market.
When I was looking for cloud storage, I looked at OneDrive (Microsoft) and Google Drive, but the prices are stupid, and they had few options to choose from, I suspect they rely on brand recognition/loyalty to get customers, plus with the free 5gb and 15gb they offer for free respectively, and that they hook you on the easy and familiar interfaces.
I was going to go with Currys PC World as they were doing like 5 TB dirt cheap, but the feedback was awful, yeah, lots of space for a great price, but slow upload/downloads, poor interface, worse customer service.
IceDrive were new but were already popping up on recommended lists, plus they had spread out on to social platforms, were answering questions, but most importantly, the price for a year was better than all big tech firms, the lifetime price is astounding.
Being a UK resident, it also mattered that they were a Wales based firm, and it is always a good thing to support home grown product you believe in, I was a believer after just one month, once I upgraded my mobile Wi-Fi device to 4G+ in the summer and it all fell into place while using it at work.
Just great to have the tools to make a difference.