My best experience with bombillas has been with these flat filtered ones. I have two with the round spoon shaped filters, and now this more shovel-shaped ones. It works great. It remains to be seen whether it loses flow with age, as all my other bombillas have done. I continue to seek a way to clean them, but several days of soaking in vinegar has not noticeable effect.
The decorative thingy is silly and looks tacky rather than attractive. But I don't care about the look.