Some reviews are claiming that charging is intermittent. Discounting that those reviewers are using dodgy, third party chargers, there is a slight idiosyncrasy with these that I noted using OEM Apple chargers (one plastic provided with my Series 6 Watch, one metal 1M charger bought from Apple). The chargers sit very slightly back in the well they slip into. The shape of the stand could lift the watch 1mm or 2mm (max) off the charger ... but I also found that equally as many times the watch lifted the charger out to make a solid contact.
My solution? I cut two "spacers" out of the box the stand came from. You can use a US quarter coin, or an actual charger, as a guide. Either way, using scissors, X-Acto knife, or compass cutter (for supreme neatness) I cut out two circles from the box to place underneath the charger. (I tried a coin, but it was too thick. Stick with the paper box.) ONE was not quite enough, THREE were too much. Two were just right; Goldilocks would be pleased. With two of these spacers inserted behind the charger, the charger sits flush against the "lip" of the charger well of the stand. The watch immediately makes solid, magnetically held contact, and charges flawlessly. The positive contact positions a 40mm Apple Watch at the center of the "screen" and sitting about 2mm above the bottom of the slot. In my impromptu test, sliding the watch into the slot made perfect contact 19 out of 20 times. I have to actually push the watch down to shift it off the charger.
This is a very easy modification to make, and is not visible at all. After making this change, my 40mm Series 6 Watch charges quickly.
I bought both the W3 (classic Mac) and W4 (blueberry iMac), and both allow you to gently coil excess cable from a 1M charger cable in the back. The W3, you need to be carefull not to coil so loosely that the bottom doesn't sit flush on a flat surface. The W4, the opening is small so you need to very carefully turn the cable while coiling inside the stand. Or you can simply coil the cable once or twice at the USB charging port.
Nightstand mode on the Apple Watch is superb, check the Apple Watch User Guide for more info. Movement or vibration near the watch wakes the display. It is said to gradually brighten when an alarm is approaching.
See pics for examples.