Hight-risk payment processor merchantstronghold for dropshipping.

Does anyone have experience with it?
They claim to be a provider for high risk payment solutions. I entered into an agreement with them a year and a half ago, and all that remained was to send a couple of supporting documents. However I haven't completed the integration. Currently there are some projects that necessitate a merchant account.... so.
Before starting the integration, I want to ask for experienced real reviews and opinions about this processor. merchantstronghold dot com
Thanks in advance.