I've had mine for 2 years, I love it :).
Be warned that the first time you use it you may be surprised at how bright the flash is
, it's not such a shock if you use it in a well lit room, though my friend wears sunglasses when she uses hers
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I'd set a reminder on your phone for when you need to do it, the toughest thing I found was actually remembering to use it. It takes me about 15 minutes to do each lower leg, five minutes to do bikini (I do a 'Hollywood' pretty much), and 2 minutes to do armpits. So I tend to do legs on one night (and stick something on Netflix while I'm doing it), and do bikini and armpits on another day.
It can get hot if it's been on for a while, which can make it feel uncomfortable verging on painful (for me at least). I find armpits the most sensitive area, so I do them first, then bikini. The backs of my legs are also quite sensitive if it gets hot, so I start there do one leg, then leave it to cool down before I do the other one.
If you use it while it's plugged in to do your legs it's much quicker as you can "slide and flash" - keep your finger on the button and slowly slide it up your leg.
Keep at it, I got results with my legs and arm pits after using it for the first four treatments (fortnight apart), but my bikini area was stubborn and I had to use it for six treatments before I saw real results.