2016 Lexus IS 300 AWD

1st time leaser here - looking at a 2016 Lexus IS 300 AWD in Colorado at 36 months/10K miles. Here are the numbers I got from the dealer:

MSRP 41713
Savings 2738
Rebate 374.99
Cap Cost/MVP 38975
Sales Tax 603.11
Dealer/State Fees 502.20
Customer Cash 1999
Net Residual 27530.58 (66%)
MF 0.00095
Drive off 2373.99
9 MSD’s offered but small change in payment

Monthly lease payment 374.99

My questions below:

  1. Is this a good deal on the lease?
  2. Think I can counter for more off the cap cost?
  3. What is the residual for 36/12K?
  4. According to the Lexus website, first month’s payment is complimentary - why is that included as part of my drive off?
  5. Am I able to understand where the customer cash is going towards? With my calculations, it doesn’t seem like its going anywhere but the dealer’s pocket.

Thanks in advance.