I'm flying Mex-LHR in CW next month.

Apologies for the rather noobish questions, but our corporate policy only allows us to travel WT+, so thought I'd use some miles to treat myself on my last work trip of 2014. And because recent OpUps on CX have now spoiled me for WT+.

I know this isn't the best route to upgrade to CW for all the side benefits, as the MEX lounges are apparently rubbish, it's a night flight and arriving too late to use arrivals lounge (1pm). I was, however, wondering what the service is like on this flight if anyone has experience? I'm hoping for at least a slightly better dining experience before a good 6hrs sleep.

Also, thanks to corporate TA I can select my seat now, so I've gone for UD 62a for novelty (to me) and it's apparently slightly cooler in this seat than the rest of the UD - I hate being too warm to sleep. I am, however a shortarse and would sit in 64k if the temp diff is not too much to bear for more privacy and to allow a longer legged passenger a better seat. I'm slightly torn trying to choose the best seat.

Thanks in advance!