The tentacles can be adapted to the size of the bottle, which small and large bottles find their place. Class I also think that you can reinhängen the bottles upside down so that dosing of goes more easily while taking a shower.
About longevity, I can not say anything yet (is in use only for a week). the only drawback is the price ... this is well ... but the Octopus is an eye-catcher and is doing what it should - so a strong buy recommendation.