I believe I can shed some more positive light on Lightspeed:

1) What model and how long have you had them?

We have three pair of Twenty 3Gs, and one old pair of 25XLs.

2) What was your longest trip and were they still comfortable at the end?

Two weeks ago we flew 21 hours in two days, to Reno and back. My headphones
were perfectly comfortable until the last hour, when they just started to
press the bow of my glasses uncomfortably into my temple. Moving the bow of
my glasses a bit solved that.

In other words, for any normal flight, you can be assured of perfect
comfort, far superior to any headset I've worn.

3) How many times have they broken (if any) and what broke?

The old 25s were sent back to Lightspeed on multiple occasions. The
not-so-new-anymore Twenty 3Gs have been absolutely perfect. They seem to
have addressed their quality control problems successfully.

4) Is the customer service and/or turnaround on repairs still good?

Dunno. Nothing seems to break anymore!

I'd buy another in a heartbeat -- but I've only got a 4-seat plane!
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"