I bought them, mostly because it is very difficult for me to use an amp to practice. They are definitely a good option - they work pretty much as advertised. I run the app through my ipad and can get plenty of good tones. They aren't cheap, but in the end I don't mind the price (I found them on a bit of a discount). So I would say they are worth it if you are going to use them a lot. Build quality is fine (I have Marshall headphones that seem a little better quality wise; a bit surprising given Boss stuff is usually pretty high quality - they aren't "cheap" feeling, but given the price...). Other option would be something like a Fender mustang micro. Not the same experience, no wireless, but would probably be better if you just want to use once in a while. If you will be practicing regularly with headphones, then I would be tempted to try the waza headphones.