Their new referral program is also rather smart. It's just one free Powerwall once you go over 10 referrals, but no more. I so desperately want 10+ referrals now so I can get a free Powerwall, I was actually considering canvasing my neighbors to see if they were interested... But for most installations, a single Powerwall won't do much. For the system I'm installing I would probably need 3 Powerwalls, so the referral reward effectively operates like a 33% off coupon.
Friend just bought a new house and I told him wait a year to have a baseline for electric bill for when he does get solar. Saw the new referral program today and told him to not be a wuss and get it now haha.