I forgot to add my experience here.
I got my EGC500, this bass is indeed my dream instrument, but I guess this is what pretty much everyone expects.
Now for the not-so-pleasant stuff:
Communication was spotty at best after I completed the downpayment last December. It was supposed to be delivered sometime during the summer, since I would be in the States in September to pick it up.
Well, I got to the States, was one week away from returning home and the bass hadn't even been built yet. I did resort to spamming them both via e-mail and the phone, even ended up changing the return ticket so they had time to deliver the instrument. Worse still, they charged me an extra 20-25$ for 2-day delivery, which I found extremely petty on their part, given I had already paid like 3+ grand and they were the only ones to blame for the huge delay.
I'm guessing high-profile clients don't have to put up with this kind of behaviour, but it leaves a sour taste when you spend this kind of money on a once-in-a-lifetime instrument and you're treated this way.