I had my legs, armpits, bikini and perianal region lasered a few years ago when I got a 6 session groupon deal. The results were amazing. The legs and armpits were painless though I'd been waxing my legs and bikini line for years so the hair was quite sparse there.
I bottled out of having as much of the labia done as I wanted (I'd planned on leaving just the small Brazilian style triangle at the front) because it was painful in that area. The skin needs to be pulled as flat as possible and it's hard to manage that on one's curvy bits. I wish I'd been a bit braver because the I felt less and less with each session.
In the areas I had done I had a few stubborn but wispy hairs left which I'd wax off once a month.
A couple of months ago I got a Veme pulsed light machine. It's a cheaper version of the lumea. I've used it to go over the stragglers on my legs, pits and bikini and it's been very effective. I also decided to be brave and have a go at the upper labia region. You have to shave the area first and then zap. The machine has 5 intensity settings and I started off at 1 until I got the hang of it better.
Again its fiddly because you need to pull the skin as flat as possible or it can come into contact with the heated glass of the lamp. I did this a lot at first (it's not dangerous; just a split second of "ow that's hot") but I'm much more adept now and maybe only do it once a session.
As it's a small area it really only takes 5 minutes but I only do it when I'm not rushing or tired because I do need to concentrate for the reasons above (and be sure no one will come barging in as I'm often in not very elegant positions). You are supposed to do it every 3 days for a month then drop to once a week but I've only managed once a week at the weekend as my weekdays are crazy busy. Even so after 8 weeks I'm seeing a difference. It's probably helped that I've gone up to intensity level 5. The hair there was very dense (and had never been waxed) but it's now sparse and growing more slowly so I will keep going.
My legs and pits I just give a quick going over once a month. This is recommended even if the area is smooth because layering isn't guaranteed to last forever.
Sorry if this is TMI but when I was reading about pulsed light machines this is the sort of stuff I really wanted to know!