I'd recommend Waeco or Dometic as well. Not a huge fan of Norcold. In the boating world we used to refer to them as 'no-cold'. In particular the door gaskets used to break down and compress after a few years causing a poor seal and making the thing run all the time.
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I have a Waeco of similar size to the unit shown above in my boat. It's been running constantly now for about 10 years. It is beginning to get a little noisy though, so I suspect I'll eventually have to pull it out and have a look at the compressor. Since its a remote-mount compressor, it really opens up the mounting options and makes the interior much larger than similar sized untis from other brands as it doesn't have that large kick-out at the bottom that eats us so much internal volume.