I own a quartet of these and a few of its larger sibling, the 1004BAC. In my opinion the 1004 is the best mic stand around: super tall, super sturdy, compact and light. It’s fantastic for location or studio micing, especially when putting a stereo pair or tree up high. The build quality is very good and the pneumatic cushion works well. It's a great value.
That said, I’m finding these 1051BAC stands to be even more useful. They don’t go as high (just over 2m) and don’t have a wide enough footprint to handle heavy mics without help, but for small pencil condenser microphones they are ideal. I am using them with Rycote quick release adapters and K&M pivot heads and stereo bars, and it makes them a snap to set up and position. They can go high enough for a standing soloist spot or low enough for a discreet cello mic. All while looking much lighter, tidier and classier than standard mic stands.
Aside from mics, these excel for myriad other purposes: talkback speakers, cameras, a base for various K&M mounts to keep various equipment and cables off the ground, and lights.
Because they fold down flat and snap together when not in use, they are very easy to travel with. I can easily fit four in a Peli 1615 Air case with the Rycote adapters still attached, and still have abundant room for everything else. The weight is negligible.
My location work makes me prioritize space, weight and broad utility, but I would certainly prefer these even if they just lived at home in the studio. Replacement parts are available, and the build quality suggests they will last many years with proper care.
These are an easy recommendation for almost anyone.
Tip: The K&M 19mm rubber feet fit these perfectly if you need floor protection. Manfrotto also offers wheels.