K&M 23956 Popkiller

This is a regular popfilter/popkiller that does what it's supposed to do, meaning reducing/removing popping sound (fast air pressure on the mic created by plosives like "p" ) during recorded speech or singing. That's exactly why I bought it for.
Only the neck is moving, not the popfilter itself. So don't fear to see the screen balancing, it won't. The neck is long enough to place the popfilter from a reasonable distance to the mic or the attach. The neck is easily adjustable but doesn't move when placed. It's sturdy.
I use this popfilter in my non-smoking homestudio, so it never moves outside and only face vocals (and a bit of dust). Got no issue with it so far.

I use this popkiller in conjunction with a Reflexion Filter Pro, which currently envelopes an AKG Perception series condenser mic.
As many home-studio owners, i simply don't have the space or the money for a decent vocal booth. Since i'm a singer/producer, it is crucial for me to solve the problem of recording vocals at home. This setup does the most in a non-soundproofed space. The filter deals with most of the reflected sounds, and i also hang up a duvet behind me on a cloth dryer. It's still not completely dead around the mic, but if the gain is set up correctly, than all you need, is a singer who can sing like a pro. And to tell you the truth, i'm not one. We amateurs tend to fidget and move a lot, when we 'get in the zone' while recording, and a popkiller just simply helps you to keep the distance, and the position. And of course, it helps eliminating some breath-noise, and sibilance.
Anyway, i don't have many experience with other popkillers, but i have other K&M products, and they are sturdy, and this is also true for this product. Recommended.