I have a 330L in antique cherry.
To be honest it's hard to put down, it looks and plays beautifully. I love the neck.
I tried it next to a Casino, but acoustically (unplugged) there is simply no competition, the Gibson is gorgeous. I play it unplugged all the time.
My brother is a far more experienced guitar picker than me and he loves the P90's to bits, and the guitar in general.
A few things I like about it:
The neck is very accessible and has a longer tenon joint that is stronger than the vintage long neck (post 67 is it?). Possibly this even improves the tone.
The dimensions of the long neck are exactly the same as a 335, which will be great when I can justify buying a 335 block.
At the price (£1600 for me), this is about the best 'custom shop' value for money you'll ever get, including COA and hard case.
The only odd thing about this one for me is that considering the long neck, maybe nickel PU covers would have been more appropriate? Still, easy to change.
You've already decided to buy one? You won't regret it.