With respect to @jared_kidd, I’ve used the FW16 for only a few months less (batch 17 here), and I haven’t see any of the firmware bugs that other people are reporting in all that time. The only problem that I have seen is the laptop waking up while closed due to pressure on the screen portion pressing it into the keyboard, something that one of the recent firmware updates fixed.
As far as I can tell, the only real differences between my machine and the ones that have the firmware problems is that I didn’t buy either of the discrete GPU modules. I have no need of it, as I rarely game on my laptop, and when I do, I prefer old games like Master of Orion II or PS2 games through PCSX2.
If you do a lot of gaming, with or without a DGPU, you might want to apply the aerogel fix to prevent heat-induced keyboard failures. I haven’t done so yet, but my laptop seldom gets very hot.
EDIT: almost forgot to add this… I bought the 180W charger with the machine, but I leave it permanently hooked up at my desk. When I’m away I run the machine off of lesser chargers that I have around. 120W, 100W, sometimes even a 65W one that I have from my previous laptop. If I’m only using a small amount of CPU power, such as for programming or word-processing, those are more than sufficient.