I gave Impersonation of Personal Financial Services Ltd (dbmmarkets.com) a fair chance. After since last summer of usage, I can say with confidence that there are far better options available. The interface is clunky, the fees are higher than competitors, and the customer support team seems overwhelmed or understaffed.
Pros: Regular platform improvements|Tax reports included|Wide product range|Dedicated account manager
Cons: None so far|No dark mode on mobile