This looks like it could have potential if given the correct backing by Amazon. Coming in at a low starting cost, the service is still currently in early access.
Some of the first looks have been positive and many have noted that the Luna controller is a step in the right direction with game streaming. It’s able to connect directly to your Wi-Fi which means a big reduction in the amount of input latency which kills other similar services.
Although the library is currently slim to start, you can add Ubisoft Plus for an additional subscription fee.
Time will tell on Luna, as it needs more games and to be rolled out to the public before we will see if it takes off. I also think if Amazon could find a way to roll it into Prime they might be on to a winner.