OK, I flew a trip with my QC2 + UFMike combo. B737-800, two day trip, 2 legs of 3+ hours and some shorter legs.
The UFM unit is very high quality. I have a machining background, and I was impressed with the care that went into the engineering and design. The housing is machined and anodized aluminum, not some injection molded crap. The UFM secures nicely to the QC2 cavity via the 4-wire mini-jack, and does not wobble or move at all. The sound quality of both the headset and the mike is superb.
Things I really like about it:
- A single AAA battery in the headset itself powers everything. No dangling battery cases, or slider volume controls. Use your AC audio panel like you always do.
- On/Off switch convenient on the right ear cup.
- The boom mike has good stiffness and will not flop around or move unless you want it to.
- Can be used as a normal Bose QC2... meaning stereo, deadheading, etc
- Has a stereo input jack on the UFM housing. I haven't tested that yet. looks perfect for an iPod.

- Good balance of weight and performance.
- The UFM can be stored with the QC2's in the Bose-supplied case.
Things I didn't care for so much:
- The boom mike is on the left, and there's no way to change that. As an FO, I had a lapful of cable. I tried routing it in different ways. Across the back of the neck worked best for me. Today, I'm going to try routing the cable over the headband and out the right side with some cable ties or velcro straps.
- I got a modest hot spot on the top of my head after about three hours, but I tend to be sensitive to those. That's a QC2 function, not a UFM issue.
Overall it's an excellent setup, and you don't have big bux wrapped up in a dedicated aviation headset. The ability to detach the mike is great, because now you have a high end noise cancelling headset for whatever you want to do with it. Thumbs up!
