I also saw a person buy the first book coming out of the store. I really enjoyed the series so far.
I just read the first book this week (in 2 days). Got about 50 pages in and ordered the 2 in the series to arrive from bookshop.org and I'm impatiently awaiting their arrival. I'm kind of broke but I'm debating whether I should just order the rest of the series now or wait until I finish the other books.