I find the lack of a seat where I can rest is a pain. Having to climb up into (as someone has so aptly called it) the "torpedo tube" is not ideal. Unless you're no more than 5.1" tall, it's not even possible to sit up on the bunk with your feet out into the aisle. And if there's a spare seat available in the cabin, you're not permitted to sit in it (!) - a rule brought in with about as much thought as went into removing the standard Boeing forward crew rest and putting the pilots as far as it is possible to be from the cockpit.
Departure 9.00am - lie down in a claustrophobic tunnel at 9.30am UND YOU VILL REST!!! (does that sound like anyone we know?) is just not possible.