I am not a fan of the name at all... but I do not have a better idea at the moment. The simple fact a great name has not been discovered is not going to stop the process
Premium is another way of saying Paid. Instead of something being free, there is a price to use the service or to download a product. For example, many Wordpress themes are free or premium. Operating systems could be another example. The Linux operating system is free, or you can choose a paid system like Microsoft. As a customer on the internet, you have many options to use free or premium services when trying to achieve a specific result on the internet.