Some cars aren’t the best leases. I feel this fits in that category. If your heart is set on it, then fine, get it, but I’d roll that DAS into monthly.
Have you talked to one of the Lexus brokers on this forum? Not sure if their pricing is going to be better.
Effective $485/m isn’t bad (or great) for a $47iK MSRP car. However, Im sure you can find better or larger SUVs for the same money.