Mac users are a loyal bunch. I changed a few years ago through necessity rather than choice and whilst I was using Mac and PC I hated the Mac. When I dumped the PC within a week the Mac just became excellent. I wouldn't change back to PC. HOWEVER - almost all software in available on both platforms but my wife is a very specialised medical research scientist and she cannot get some of her software on a Mac so depending on your work check program availability.
My daughter (8) uses PC at school and Mac at home and has no problems.