I wanted to transfer my portfolio from another broker to Steemusdc (steemusdc.com). They said they do not accept in-kind transfers for my asset type. I had to sell, withdraw, deposit, and rebuy - incurring taxes and spread costs. They did not tell me this before I signed up.
Pros: Professional team|Stable platform|API access
Cons: Charting tools need more indicators|Cannot customize dashboard fully