nice setup, but sneak is right. bad place for monitors!
im glad my silky radio voice cn get inside people's heads. ive been working on it for a long time..;-)
but seriously, what problems are you expecting with an old mixer? they are usually built like a tank. only thing you can possibly encounter in the real world is noisy pots and faders. but how many tomes do you touch those IN the mix while recording? granted, i do, but even then if you have a great big 'GRRROOOIIIKKK!!' in your track, its fairly easy to clean this up in software. if all else fails, press on vinyl and blame the pressing plant. ;-)
of course parts can go kaput, but that happens in all machinery. a friend of mine just bought a brand new RME audio interface, only to find something is wrong with its firewire output which put his whole studio under static electricity. he gets shocks from touching his monitors, computer, etc.