An interesting read for me as a new owner who was reluctant to a degree due to reading of all the problems.
I managed to find that very rare beast a GC680 used, having missed out on the 4wd one I wanted by one hour so even that was a compromise (tho I prefer the colour of the one I got) . I paid slightly less than a fully loaded T6.1 Ocean which was the same answer I got when I checked the new price, similar price to a high spec, 2wd dealer Ocean but basically a new price even though approved used but to be expected with a 16mnth waiting list.
From experience of 2 Cali's an ocean and a beach, both of which have their fair share of niggles/issues, its also clear this applies to many coachbuilt conversions.
I couldn't find the balance of compromise I wanted in a conversion at less than 120k OR I simply couldn't get the one I thought I could live with as a result of Brexit, no dealers, no euro dealers wanted to deal with me.I also couldn't get what I wanted until end 23 earliest.
I did not want a fridge due to width, I did want a bathroom and not to have to faff around with bed making.
I agree the lounge is smallish and I wish the bench reclined a bit. The latter solved with a cushion mind. I would eant more 'offgrid' but I can see, thanks to this forum, how that is easily achievable at moderate cost even if a little more inconvenient than being 'built in'.
I watched bus and beyond and it was a game changer, I see the sterile criticism and can understand that but some led ambients (yes fairy) lights , colour on the bed, some adventure stickers on the cabinets and it changes the inside completely.
Personally when out we spend 80% of our time outside not watching telly in a lounge, but if we do spend it inside, just like in the Cali, we eat then pile cushions on the bed and crash there with an Ipad or laptop and a film.
I want(ed - still in my mind) an RP Rebellion but I really don't like fake wood with a passion, , a caravan lounge area - hate the thought so have discussed eliminating both with them and I wouldn't want the much lauded up and over door as its a PITA with the mtb's I need to carry. and of course the price, >£150k
I did want a high ground clearance 4wd (which the GC doesn't have as not higher unlike Sprinter) but equally nervous about the Sprinter, base vehicle reliability and dealer network reputation.
ALL of the alternatives in a similar panel van, including conversions, were as much or more than the GC for a similar spec, Knaus Box drive, Seven Hedin, Hymer Grand Canyon (and most 6m - my original thought) and I was already nervous about the cost since I didn't know if I would like anything bigger than the T6 due to the everyday convenience and never worrying about parking.
So tho that might seem off topic, the point is I think it is a different market to a cali as described, and whilst a compromise it was the best compromise for me at this time and it is quite likely I'll stick with it based on initial impressions.
To answer the question a year on from the thread, they are rare used still, maybe because of the production issue still but not only that, the GC680 more rare but to be expected as 3.8T and 2 berth but I think this is a particular market (look a the marketing photo's, quite age targeted, yes I am mid 50's, active, heading to semi retirement, want to travel with my wife around Europe as the kids leave home to Uni etc...stereotype me! ).
It looks to me that it is a success in Europe as it is a good price point for this kind of van with a modern and fresh interior with a good dealer network.