Update:
Applied 7/6
Conditionally approved 7/19
First apt. avail in Boston Logan was March 2017. I refreshed thousands of times for about 2 weeks and got a 9/3 apt. I could have gotten earlier, but my schedule didn't work. I found that open appts were gone in 1-2 mins or quicker. So, others are doing the same thing. I got a late September apt for my spouse.