If you're wanting a specialised haircut that offers a little more than just the usual trim, a barber is where you want to go. Especially if you're wanting shaved sides or a fade, this is their specialty. Some barbers also offer a facials shave, hot towel treatment and even a sneaky beverage to amplify the experience.
It depends on how quickly your hair grows, as well as how neat and tidy you want to keep your hair. Anywhere between two to three weeks is recommended, but some people opt for a tidy up even once a week. It depends on your preference and style.
A barber is trained to cut short hair, traditionally trained to use clippers, whereas a hairdresser is trained for longer hair.
A hot towel shave is quite literally a hot towel applied to the face pre-shave. This opens the pores and softens the skin, making it prime time for a close shave.
Most barbers will offer the full treatment which includes, if you're after, a beard trim or shave. We can't speak on behalf of all of them, but it's more likely than not you can opt for this treatment to be included.