If you like the Apple laptop keyboards, they are very similar. For a membrane keyboard, I'd say it's one of the better ones.So how do you qualify this extended Bluetooth Apple keyboard? Medium, Good, Very good, Excellent?
Battery is decent. Depending on how much you use it, plan on charging once a month (occasional use) to once a week (daily all-day use).
I guess the round corner keys don't really bother me.
There's several companies that make nice trays and wrist rests if you like that kind of thing. One of my favorites is: https://grovemade.com/product/wood-keyboard-tray/?initial=448 (I've got the one for the smaller keyboard without the numpad). Make sure to select the correct model on the webpage.