I selected no, for similar reasons to Bucked Off, really. I've just done my 50th dive. I am improving all the time but am not yet experienced enough to feel happy diving solo. I have done dives with poor buddies where I suppose I have effectively been solo. I've been fortunate with buddies, but have had 2 'same ocean' buddies in the last couple of years. Each time was good enough vis and calm enough conditions that I have continued the dive (I can see the 'buddy' doing their thing 20 metres away), but I do not feel 100% happy in this situation, with no redundancy. I suppose really I only solo dive when forced to!
I can imagine solo diving one day, but I would need to be alot more confident about my ability to self rescue, and would want to be very familiar with the sites I was diving solo in. In the meantime? Rescue course is definately on the agenda this summer.