With input of Amazon users, the idea I am for it, attracted by the ease of installation, cleaning facilitated by unclipping and damping down.
Indeed, once understood the system (read the instructions!) I was able to install it myself, and cleaning is really easy and hygienic. The amortization of the tomb of the telescope and its cover is really nice for the ears ...
The only problem that bothers me is that the installation system, adaptable by his side every size, moves gently and progressively ended up being a turning to the right or left. This is not very serious, but it does occasionally reposition trying to screw as firmly as possible and position the two ends symmetrically as possible. Moreover, plastic is qualitative enough, thick enough and strong for not "cheap".
So very well, I am satisfied and would recommend it, but if the brand could find a way to prevent the positioning from shifting 6 turns would be stars!