Hello,
I bought the Ultradesk Niveau V2 in black and I had the same question as you. The blue is Ultradesk Udesklvabl whereas the black, white or black/red is Ultradesk Niveau V2.
For the Ultradesk Niveau V2, the mat doesn't protect the whole desk... it didn't exist when I bought it 1 1/2 years ago. The V2 desk doesn't have the same Udesklvabl shape, but it's big enough and has a good level of comfort.
It's stable even at the very top, I have two screens on it and nothing moves (I didn't sit on it to see lol).
The motor is quiet and easy to adjust to the desired height.
It's not very difficult to assemble, but you need two people to do it.
The tray is in two pieces. (Not very visible in the photos as the carpet hides it).
I am fully satisfied with this purchase.
The Level V2 in black
https://static01.galaxus.com/productima... is a good visual.
Have a nice day!