I just put this review on sporty's website for the Zulu 2 headset, so I figured i would post it here as well.
Pros
This is a very comfortable headset. The noise cancellation is great. For single engine aircraft like cessna's and pipers it makes it super comfortable to fly. Makes it sound like you are riding in a car.
Cons
The only downside, but this is really true with any anr headset is the cups have to be fully seated to the side of your head to work to their full noise reducing capacity. Sunglasses do let some noise in, but i bet if you have a pair of aviator style or something with very small and thin arms this would be a non issue. Overall this is a very minor con.
General Comments
I have really enjoyed using this headset so far. I bought both the Bose A20 and the Zulu 2 at the same time to try them both out. They both seem to have the same noise canceling, really couldnt notice a difference. Zulu had a bit more noise reduction without the ANR on, compared to the bose. I prefered the Zulu headset because it was a little more comfortable to me, it was a lot less $$$, and it came with bluetooth. A20 comes with bluetooth - for $300 more....
Overall, they are both very nice headsets, I just liked the way the zulu felt and sounded better. One last side note, and it could have just been a fluke, but my A20 headset would take a split second to pick up what you were saying, almost like the squelch was to low. I know it wasn't the airplane squelch because i tried both headsets back to back at the same time. This sounds really minor, but every time you are trying to say something, the first little part of what your saying is cut off and it kind of "pops" in when you start talking. It really bugged me after a very short time.
Conclusion: I sent the bose back, mainly because they were more expensive, and i just didn't feel they were built as well as the zulu's. This say's a lot because I really wanted to like the bose more since they are made in the USA, but I just didn't think they were as nice.