Living on/in a floating steel box isn't too bad when you go home 1/3rd of the time,,,,except when the AC system dies.  Then the temps rapidly soar over 100+ degrees.  Sleeping becomes impossible.
The AC&R man got it going temporarily because "just-in-time" supply/delivery can't replace this unit until Monday (3 days).
This is in Houston, Tx!!!!!  And there isn't a spare system in this LARGE city!!!!!  Now that's scarey!!!!! 
More evidence as to the wisdom of being prepared @ home!
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QMC, USCG (Ret)
The best luck is what you make yourself!