How can I recommend Astralpool Nanofilter?

I have bought two items branded Fluidra: a Zodiac e30iq pump, and an Astralpool nanofilter 200. The pump had connection issues; after one day spent with the technician, I had to replace my wireless access point (which had no problem with any other device), and then it worked. In general I find the limitation to only 3 speeds as quite artificial, and although I can’t measure it exactly I am not impressed by its power , judging by the very long time it takes to prime from a small level difference. But the Astralpool Nanofilter is the biggest disappointment: even with a cyclonic prefilter, and a covered pool, it clogs very quickly (in matter of days, sometimes hours) and then can bring down the flow from 14 to 4 m3/h or less (with the same pump power). Backwashing takes long time (and water) and is quite ineffective (it never restores it to the original capacity), and a few days ago while turning it the fiber got caught inside blocking it so that the handle broke. I have since tried to contact the assistance (only a form on their website) for a solution but they haven’t yet come back or even acknowledged the request! Not to mention that, despite the indications on the website, it came without the multiport selector, which then I had to buy separately. And that as soon as installed it was leaking, and after thorough inspection it came out that one of the 12 bolts holding the parts together was missing! How can I recommend this brand?