I had a lot o fun watching this and it has been a while in terms of anime, specially as I grow older and get tired of certain things.
The main reason being that I played PSO2, like, A LOT and the development of the story brings you to the aspects of the game in a very fun and enjoyable way. I also loved the art and the OP even though they were nothing from the new world (pun intended). This anime, for the most part, depicts the experience of playing the real PSO2 but with a bunch of anime cliches. Nevertheless, even if you didn't play any PSO2 in your life (or any game of the PSO saga for the most part) you can still watch this and enjoy it to some extent (I guess?). Since the episodes are short and they treat separate aspects of playing the game IRL the story development is practically non-existent. There's, however, some small character developments here and there so the plot is not 100% empty. The point being that there is a sense of cohesion from the first to the last episode, even though you could probably watch them separately and wouldn't notice much difference.
In short, I might be pretty biased towards liking things related to PSO, since the Blue Burst saga is my favorite game ever. Notwithstanding that, I believe that this was totally worth the watch and an enjoyable experience. I think that this could be the case for other PSO players that like anime and are looking for some short, non-deep-brain-breaking, fun stuff.
