>>i think it is slightly difficult to add symptoms

Yes, I believe there might be some difficulty for a new user. Typically we should add symptoms right from the case notes (select the needed text and right-click it), and then attach repertory rubrics/ Materia Medica extracts to it. This might take time to get used to, but it's well worth the toil due to its classical nature, really helps to analyze the case.

>>software colors are so attractive. colors are light and do not pinch to eyes rather give cold effect.

Yes, the colors and controls are good
I"ll inform my designer of your opinion, think he'll be most glad to hear it.