Hi NZWW,
thanks for the kind words.
Most of the things you mention we are well aware off and agree - they are on our list of improvements to do!
Some things are harder to whack - i.e. the GLIDESLOPE warning is realistic - its just that in real life there is no reception of the glideslope as you use the opposite runway to depart on, hence no warning. I do get that nuisance warning in XP as well. That being said, I am not sure which SOP´s require setting navaids for immediate return - all the SOPs I am aware of require to set navaids for the SID, instead.
The autobrake works fine for me (and most people) - make sure that your thrust is really idle upon touchdown. The deceleration rate is default X-Plane, but I did some measurements and found the values to be pretty much in the ballpark for the real 737´s autobrake.
The "cockpit lit with seatbelts off" is a X-Plane limitation - it is actually the cabin light "bleeding" through the rear cockpit wall. To avoid that, just keep the belts ON. You can see the dome or emergency exit lights in the cockpit illuminate (fixture is bright) when they are lit, so you can confirm it is neither of them.
I have to check the climb N1 again, but I was pretty sure it gradually washes out to full N1 during the climb...
Cheers, Jan