That's a very nice looking bit of kit. Love the personalised touch of the bird, although I personally would have had the backplate on the front, precisely because I don't really like the neck-through contrasting woods look! Wouldn't it be a boring world if we were all the same?
You will, as others have said, not be disappointed! I'm currently trying to work out what I can sell to finance another ACG. I've been getting into fretless but much as I have a really great bitsa with a great fretless P neck and and some filter preamp goodness I always go back to the 'built for me' fretted ACG and realise how much more I get on with the feel and the sounds. So the only answer (ahem) is to get Alan to build me a fretless version of it! The fact that a Vigier, an alu neck Kramer and the aforementioned fretless, all of which are fantastic basses in their own way, will all have to go to finance it should tell you all you need to know about how great an ACG is.
The asymmetricl neck profile and the flat board are what really do it, I think. It just feels so much more fluid to play and the bulge always seems to be in the right place, either allowing my thumb to rest in a more natural position and shifting the palm down a bit so it allows the fingers to move more freely or sitting right in the joint when I shift to a more baseball bat type grip for chords.