How satisfied are you with laser hair removal?

I'm planning a water park trip for my summer vacation, so I'm thinking about starting laser hair removal on my arms and legs right away. I've always managed with self-waxing tapes or hair removal creams, but it was too much of a hassle because it only irritated my skin and the hair grew back prickly after just a few days. I think laser hair removal is the surest way to maintain a clean look, so I'm planning to book an appointment at a dermatology clinic right away. However, I heard the treatment intervals are one month apart, so I'm worried if I'll see enough results before vacation if I start now. Could those with experience please share some tips on how many sessions I need at a minimum to comfortably wear shorts or a swimsuit outside without worrying about shaving?