I ordered a SIMBB 29R June 3, 2016 paying full price ($8,700) plus shipping. J** T***** emailed me July 20th saying "...it will be about two weeks delivery time". August 25th JT spontaneously emailed me again saying sorry the bike was late and "...will be finishing up your SIMBB next week". On September 9th I called JT to ask what was going on, and the status of my order. JT returned my call that afternoon and offered no explanation as to why his second delivery date was missed, no explanation of what was going on (I'd been waiting 19 weeks at this point), and when I pressed him on delivery he said, "we might be finishing up your bike next week." That afternoon I sent an email canceling my order, and have not heard anything back since.
You can read more about other Optibike customer experiences at bbb.org (they don't look good). If you get your bikes, please post back how long you waited, and what your impressions are of them. Good luck.