How long does the effects of laser hair removal last?

Shaving every time is such a hassle that I'm considering getting laser hair removal before summer comes. It's especially stressful because the hair seems to grow back quickly on my underarms and calves after just a few days. My friend says she felt so much more at ease after getting laser hair removal, but I'm hesitant because I've heard it varies from person to person. My biggest question is about the duration. I'm not sure if the results last a long time after just one session, or if the hair grows back after a few months. I'm also curious how many sessions are typically needed to achieve satisfactory results. Additionally, I want to know if the pain is tolerable and if I can exercise or shower immediately after the procedure. Prices vary quite a bit by clinic, so I'm not sure what to base my judgment on. For those who have tried laser hair removal, please share how long the results actually lasted and which areas you were most satisfied with! Maypure City Hall Station Branch