I have both the standard and the integrated stem ones. The latter I don't like that much because of the weird angles (very negative stem and then very vertical drops. Design mistake imho). The normal zniino one I have been using for 7 months in my 29er and it works very well.
I never considered this kind of bar, but looking at your bike, for long distances this is something I would want to try.
Where do you get the grips?
This is the Teide! Right?
Are all tracks around the Teide more for a 29er or a gravel could do it?
I come often, and hesitated to take my gravel instead of road last December.