Got the rollout, liked how the new comments worked but we heavily rely on using mobile devices.
Still tried using the new planner by focusing on desktop devices, but got really frustrated how much time it needs to sync comments. There is literally no option to instantly check a comment written by someone. You get a notification click on it, and it shows nothing. Need to close and reopen Teams for something to show up.
If you decide to do that later, you forget that you were mentioned in the first place.
For that reason, until they fix that, and make the update work on mobile phones too , we gave up from Planner and switched to Lists. Believe it or not it works perfectly by using Board view. It works on mobiles too.
You can write comments similar way that Planner Premium works which is not the best way for us, but still it is good enough because it is reliable and accesible from phones.
I can't believe that by using Lists you basically get Planner Premium :)