I don’t have experience with River but generally trust them as a company at least as a Bitcoin only exchange. Compass is a bad actor and should not be used. We are mining at larger scale and you can make money if you run an efficient operation. The problem is that the only way to be certain the operation is run properly is to run it yourself. If you can’t mine at home, you might be better off continuing to DCA. If you are hell bent on getting into mining and need a third party to host, send me a private message.