She is young and very friendly. Because of the fun atmosphere of this class I look forward to it, even though the content can be confusing at times. Maria does a good job of making the lessons relatively clear and straight-forward, yet is not very good at keeping the class on track. There are a few distractions and off-topic discussions each class, but they usually pertain to greek culture or stem from that at least.
She could definitely do a better job at explaining some grammar. If you are 100% new to modern greek grammar I would recommend looking up an online guide or using youtube videos to help you understand because it can be easy to get lost.