I have faced multiple issues with evolve, they have a beautiful website and client portal and are very good if everything goes well, but when things go wrong (like too much slippage on a trade, or any other trade specific issue, it takes ages to get a reply from them. I droped the ball on them and moved on. Happy to have moved on. There are other brokers that I find are much more responsive and I rather put my money where I get a responsible relationship manager.
From my experience, I can tell you that having a relationship manager (or atleast a human) to talk to directly, is utmost important. Because most of the times things go fine but when they do go Wrong (because at some point it will), you need a human to listen to you and try to resolve it without quoting “policies and procedures” as a lame defence tactic.