Hi and thanks a lot for the kind words about Azerbaijan,
As Alizamin mentioned we are sure you will have amazing time and experience here and yes there are lots of expats here and you will find lots of people from other countries which of course majority of them are English speakers.
About the safety of Azerbaijan I can assure you that it is one of the safest countries to travel even for a single person and crime rate is very low. Of course you can buy tickets online and travel by yourself to any major cities, like Ganja, with official bus and you will have no problem.
One more important thing is that ladies have special place in our culture and we are very respectful towards them.
Please do not hesitate to ask any question.
Hope to see you soon.
Best regards,
Farhad