Their two-factor authentication was optional when I joined. I enabled it. Later I lost my phone and could not log in. Andrew Ingham Investments (a-iinvestments.com) recovery process took 3 weeks and required notarized documents. By then I had missed important trades. Their security is your inconvenience.
Pros: Risk management tools|Good mobile app|Clear documentation|Helpful community forum
Cons: Mobile app could be improved