Moonwatcher
Some thoughts on your questions, I've had my Caladans 3 months now. You can read my full review on the "Anyone else order Caladans from Clayton Shaw?" Agon thread back in February.
(1) Placement - I have played around with positioning quite a bit, and have found them best at least 2 feet from the front wall, and at least 18 inches from the side wall. I'm building a dedicated listening room, where I will have more flexibility and will have them a little further into the room (2.5 feet) and a little further from the side walls (2 feet)
(2) Warm or detailed sound - I previously drove the Caladans with a Denafrips Hades SS preamp and Denafrips Thallo amp, and they sounded neutral.....not overly warm, but never sterile. I now drive them with CODA class A SS amp, and Aric Audio Transcend "Push Pull" tube amp; both being driven with an Aric Audio Motherlode XL tube preamp. I do prefer them with the tube front end, but I think it's the tube preamp that adds that extra warmth. Not sure what you have for equipment, I didn't see you have a virtual system loaded
(3) Clayton retiring - Not sure if he is, or even if it matters. Yes Clayton left Spatial, but still has a great relationship with them (they even do final assembly of the Caladans).....some have suggested he had some health concerns that influenced that decision. Someone correct me if I am wrong there
(4) Speaker driver alignment - I have found the Caladans to be well integrated. When he designed the Caladan Clayton moved the tweeter closer to the mid bass driver (than his Spatial speakers) and I do find them to be cohesive. To me music sounds as though it is presented from a "stage" of movement between the speakers. If I close my eyes, I cannot pick out their exact location.....even of course I know where they are.
(5) Low level listening - These speakers are great at that. I never listen at loud levels, and the Caladans are the best speakers I've had for low level. Most of my other speakers needed to be pushed for their best sound (many Thiel models), Infinty Reference Kappa 7 and 9s, and even my recently purchased Buchardt Audio S400 MKIIs. I do think high current (not high wattage) amps do help with low level listening