It's a fine toothbrush.. As an adult, the small head annoys me a bit because it takes me a little longer to finish, but my daughter who has braces finds it convenient.

I bought 4 XS Tepe pieces in different colors to try the reachability that everyone talks about and it really reaches easily to hard-to-reach areas of the mouth.
The last toothbrush I used before Tepe was the Curaprox with 5400 bristles and this is the comparison.
Tepe XS is not extra soft at all, it is close in hardness to a medium toothbrush.
It irritated my gums and I saw faint traces of blood, something I never experienced with the previous toothbrush.
The head thickness is at least 40% smaller than that of Curaprox 5400.
It's very cool that by dipping it in hot water, you can adjust the neck to the desired angle.
The wear of the bristles is noticeable from the second use.
I believe it is a simple Swedish-type toothbrush like all the others in the supermarket.
Durability, cleaning ability, design, and softness winner is Curaprox. Reachability is Tepe.