Mark has designed a complicated Excel spreadsheet for me. His conscientious and hard working attitude ensured that the final product exceeded my expectations. He went above and beyond to find out what I needed, which was quite a difficult spec., he discovered new solutions and programmed some excellent shortcuts. I would thoroughly recommend Mark to anyone who needs a spreadsheet well designed.
Fantastic work was completed to a very high standard. Excellent communicator and delivered what was needed. Highly recommended.