I'm liking it so far.
I stuffed an already-modded FSD on it, and stole a charge-enhanced PD from one of my other ships. I took the 7C biweave shield off my 'Conda and stuffed in a couple of left-over shield boosters.
I have a whopping 437MJ shield, but I took it to the HIGHRES anyway, to get a feel for how it flies and such. I didn't die. I thought it handled like a massive barge, it was glorious. If an NPC wants to ram you, it will succeed. There's no dodging in this thing.
The view from the cockpit is excellent!
It looks rather magnificent sitting on a planet:
And it's pretty in the air, too.
Supercruise handling is very sluggish. Regular handling is better, but still sluggish, and wow does it drift forever. I like it, actually. It feels humongous.
Oddly, I've had no problems docking it. But I have yet to go OUT of the slot without bumping. You gotta be centered, man. Really centered.
Now I have to spend some time looking at loadouts and engineering to decide how I want to fit it out.