Perfect Panel is a serious engine in this market - plenty of panels run on it and it does the job. Its problem is not technical, it is the billing model. The subscription starts at roughly $50 a month and is unrelated to how many orders the panel processed. The invoice is identical in a month when everything went well and in a month when your customers were on holiday.
For a young panel that hurts most. The first months go on advertising, filling the catalogue and finding an audience, which means order counts are low by definition. A flat subscription during that period behaves like a tax on trying: you have earned nothing yet and already owe.
We built the tariff from the opposite end. What counts is orders created during the month, per panel, and only those routed to third-party providers. Up to 100 such orders a month costs nothing, always. Above that the plan is selected by volume automatically - and steps back down just as automatically when order counts fall, all the way to free. Orders the panel fulfils through our own provider, Heroverin SMM, are not billed at all: buy services from us and the panel stays free at any volume.