The architecture of Terminal A is absolutely stunning, it looks great. The lounge looks decent but I fear it will always be crowded as a result of allowing Priority Pass holders entry. Certainly didn't look like the "tranquil escape" they describe it as on their website.
The screenshot states shower room is not provided but your video shows a shower room. Can you please confirm if you paid any extra money for the shower room or was it included in the AED262.98 fee?
In reality you would only get 30 to 45 minutes at the most in the lounge once you factor in time going through security, getting to the gate and boarding time. Certainly not worth it if you have to pay. I went through AUH a few days ago and my layover was 15 minutes longer than yours. I had only about 40 minutes in the Etihad Lounge. Fortunately I had free entry. I certainly wouldn't have paid to go in, especially when it's a lot more expensive than the Pearl Lounge.