Hi jet, seems like there are just a select few on the forum so far.
Not sure I will be able to help you with any of your queries as I have the petrol version and I assume you will be looking at the diesel like most CX5 owners.
Bought mine in March and only had to wait less then 2 weeks as long as I had black, not my first colour but have grown to like it. Otherwise delivery would have been July/August.
So far I have travelled up to the north of Outer Hebrides (Butt of Lewis) and the South Coast and has proved very comfortable and no problems. It is a relaxed cruiser but there isn't much torque in higher gears so have to use the gears a fair bit to maintain speed on hills and pulling out to overtake. Probably would have been worth spending a bit more for the pulling power of the diesel!
Fuel consumption on long runs has been 43MPG , not bad for a large 2L car, and on one occasion 52MPG over 150 miles at 60MPH travelling on normal roads from Ullapool.
There is plenty of room inside, good sized boot but do object to having to buy a spare wheel. Didn't fancy being stranded in the Hebrides with a shredded tyre with no phone signal and no one else around. Haven't used it yet but............
On the whole a great car but go for diesel.
Good luck in your car hunting , if you go for the CX5 I am sure you will enjoy it!