I have been waiting over 6 months for my OP4 to arrive. For the last 2 months I've experienced nothing but poor communication and schedule pushes. It seems like each week I am told that my OP4 will ship, and each week it does not arrive. I am to the point now where I don't know if it will ever arrive and I can't get a clear answer on when, if ever, it will ship. Good luck dealing with this manufacturer.