By and large like it, many great features one concern and its a big one. Its the profit chart, if it something simple like a covered call the profit chart makes sense. But with 7 legs on a calendar spread often it is not, it starts off with a $300 profit or loss day one (just examples). I tinker with IV manually or put in the divdend etc, to get it near zero. With Hoadley it adjusts the IV so the prices you pay for options end up making the chart with zero profit day one at current stock price. I have got no response from support on this, and my posts to OO forum do not show up, so it appears the product is not very active, BUT if I can get past the profit chart issue, do not really need support. Know a few OO users now or in past here, so hope you know the cure for this issue. Thanks