I signed up with Metamarket (metamarket-gx.com) after a friend recommended them and the first red flag was the aggressive account manager who would not stop calling. After depositing, the promised support vanished. Withdrawals are delayed with endless excuses. I have reported them to the regulator.
Pros: Portfolio tracking tools|Easy withdrawals|Multi-currency support
Cons: Slow to add new assets|Limited ETF selection