Great! Glad to know that more people will be getting it shortly.
Although my usage has been limited, it feels like the charger is slow, so I did a little testing using a USB voltage and current meter. The results are from an iPhone XS in an Apple case at approximately 50% charge.
Both USB ports were around 2A for most of the tests, although the current dipped quite low using the Qi charger fairly often. The 12V socket with an appropriate USB adapter appeared to give a generally more consistent 2A as did a wired connection. So I would say that the charger is indeed pulling 7.5-10W most, but not all of the time. How much of that power is getting to the phone I can’t say with iOS. Also not sure what drives the variability in current draw from the Qi of if this is normal, so anxious to learn what others are experiencing. It may be significant enough to make the charger seem slow.