Easy assembly, but picture instructions are not telling much. I think it's better if you put your keyboard against a wall for this stand, I use it away from the wall and it is wobbling left and right slightly. The backboard which is the long board that connects the two shorter pieces is kinda flimsy. It doesn't have a solid feel like the Yamaha P-125 stand. Overall, it's okay as long you have some furniture that prevent it from rocking left and right a bit.
VERY easy to assymble, but it's not very sturdy. It's not flimsy but after installing the Korg B1 it works fine. The price has been a static 100$ for years and I've never seen this on sale. The box and materials used are probably 5$ worth total, so paying 100$ is a stretch, but convenience is what I'm paying for.