Maria is a superb editor, and I highly recommend her work.  She recently provided comments for The Retreat, book #2 in my young adult fantasy fiction series Olivia Hart and the Gifted Program.  Not only did she correct grammar and spelling, but she also asked questions about the plot and reasons for word selections.  Her work is thorough and detail oriented, and she was prompt and professional.  Fantasy writing is difficult because it pushes the boundary between real and imaginary, but it never frustrated Maria.  She was spot on with her analysis of my work, and she has been a supporter and a friend throughout the whole process.