...never listens to a word I say....
£4k is a lot to spend on a console for home use.... And you won't like the knobs all being upside down!
Cadac has a long and impressive history in the live theatre market, and I have always been impressed with their engineering excellence. I attended a lecture decades ago given by Clive Green of Cadac and someone from SSL (sorry.. name's escaped me) on console design. It was superbly informative and I came away full of admiration for the Cadac engineers' attention to detail and good engineering -- both electronic and mechanical!
Obviously, the Live 1 was designed as a theatre and live-sound console, and as a result there are various operational aspects that, while suiting the intended application well, make it unwieldy or even unworkable in a studio setting.
The highly restrictive monitoring setup is probably the most serious 'feature' in that regard... but there's also the fact that the direct outs are post-fade only, and the preamp gain bunching is a disappointment in such an expensive console. Amongst my professional analogue console collection I have a Soundcraft RM1 and a Calrec MiniMixer II -- and neither exhibit gain bunching! You just don't expect it on a professional console!
The completely bonkers decision to use 3-pin XLRs for plug-in lamps just rubs salt into the wound!
Of course, the Live 1 is unusual in having so many aux sends per channel, and I know that's an important element of your particular wish list, and it's EQ is very good too... but for me there are so many other things that would frustrate about the console in a home/project studio recording application.
If I was spending that kind of money I'd buy a Yamaha DM1000 without hesitation*. It's infinitely more versatile and configurable, has 8 aux sends, four high-quality effects engines built-in, much greater I/O capability, and still fits in a 19-inch rack. And being able to set up aux sends on the faders at the press of a button is brilliant!
*Other digital consoles are available and offer similarly expansive and versatile facilities.
