The W3000 shares its clamp with its more expensive sibling, the RS5000, but instead of a folding aluminium frame you get tubular steel.
The two section frame is not adjustable for height, but it's a comfortable working position for the bike. The small footprint means the Minoura isn't the most stable stand, and the clamp can't be offset to the side either, so you'll need to angle your bike down for maximum stability if you're clamping the seatpost.
It's all pretty sturdy though, and the adjustable feet will be useful if your work area is uneven. The clamp itself is excellent, an all-metal construction with replaceable rubber inserts in the jaws. The ratchet system for rotation is the best here. It's much happier clamping a seatpost than an odd-section carbon tube, but that's best practice anyway. It's a bit of a pain to assemble and disassemble, so it's a better choice if you've got dedicated space; especially if you can sink some clamps into the floor to make it a bit more stable.