Apple computers have limited amount of software available, and all Apple products do things their own way, thus in some cases limiting their flexibility. (They also tend to tie you in to their way of doing things)
You will also hear from Apple owners that they are more reliable and less prone to problems than PCs, however in reality there is no difference, (I have been working with all types of computer for over 30 years) so you can just ignore the vocal For & Against camps. (Remember there are more Windows PCs then Apple PCs so Windows will always appear to have more problems)
The only thing you need to know is that Apple is a pretty closed system, whereas Windows (And others) are more open, thus ultimately more flexible, (Also because 80% of the market is dominated by Windows you will always be able to have a chat with somebody that’s got one, whereas Mac owners are few and far between) but do you need that flexibility?
Golden rule when buying anything is make sure it does what you want, and it will work with what you already have, (Include anything you are thinking of upgrading to) then just go for it and enjoy.
Hope this helps
Bill