This stand is marvelously engineered. It's amazingly compact and portable. However, I have a couple of reservations about it.
1. Its core strength (its weight) is also its most serious liability. It's very easy to knock over. If you're practicing or performing outside, a stiff breeze can topple it.
2. the leg extensions are a problem. A number of reviewers described this, and they're right. They're a challenge to put into place.
3. the desk is fine for single sheets. However, anything substantial (like a book or even an iPad) renders it top-heavy and unstable. You've got to use the solution they've built in---hang something like a backpack between the legs using the strap that they provide.
4. single pages hold in place with clips. Page turning is almost impossible while playing because you need to release the clips.
5. it takes a while to figure out how to get the legs extended to equal lengths.
All things considered, it's a worthwhile purchase. I use it in a spare room at a relative's house when I'm there, and it's perfect for that. I would not risk an iPad on it unless you use a very good counterweight (like a backpack containing a few books. As I said, its engineering design is a marvel of lightweight portability. I am looking forward to a new product that NoisyClan is said to be developing which will apparently be more substantial. I would definitely buy it, after my experience with this.