My 13.4s have been dropped, kicked, shut in the canopy, baked in the sun (but
when you put them on afterwards) and generally abused, and they've been bombproof so far. I think they are great, and would definitely recommend them
. A search here should find several threads, and IIRC most people think the same - but some disagree too. DC10-40s are great too. I think they're no longer made, but they're a good second hand buy (if anybody is selling....)
DCs have a reputation for being incompatible with other headsets, but i've never seen it myself. Again, a search will find more.