Played it for about 3 hours yesterday actually. Lots and lots of small adjustments to the pickup heights, bridge height, intonation. Have not needed to tweak the truss rod yet luckily; when I swapped the 10's out for 9's the neck straightened out to the almost zero-relief that I prefer and has held stable there.
Great tone from the '61 pickups. They seem much hotter than I remember in this guitar, so I don't know if Gibson changed something about them. They have the same clear, articulate overdrive sound that I love in T-Tops, where no matter how much gain you throw at them you still have plenty of individual string definition and single note lines and solos really pop out front without having to twist a knob or boost.
The switching options are tits. This is the first Les Paul I have ever had (and I have had a lot) that has had push/pull options and I am really liking the versatility. So many variations between the coil splits, which amazingly have no volume drop at all, and the phasing. Some of most interesting tones are both pickups on with one or the other coil split. And you can get some super-funky quack out of 'em with the phase. Have not found a use for the blow switch yet but there has to be something in there - I actutally wish it worked on the neck pickup not the bridge, that would be more useful to me personally.
This is also the first Les Paul I have had with a SlimTaper neck. Its not like the thin necks that late '70s LPs have - those have a very different profile and get much fatter as you go from the nut to the heel. I've had SlimTapers on a bunch of SGs and a couple of Firebirds before but never a LP and this one is different. Its a round profile instead of flat and for me that's much more comfortable. After a bit of acclimation is started feeling natural and very fast.
Overall, very happy with it and still think the Classic is an absolute steal for what Gibson is charging for them.