I'm having full body laser done, face to toes and everything in between.
After just one session of laser (~4 weeks ago) and 2 months on hormones, alllll my body hair is growing sooooo slowly now, and it's almost all blonde. All of it, face, armpits, legs, arms, chest, etc... Granted I've got patchy brown hair coming back in now because of how hair grows in cycles, but I'm really amazed at the results all over in those first 3 weeks after laser. It will only impove.
So, rule of thumb, if you have the correct skin/hair coloration for it, get a bunch of laser done. Then go for electrolysis to pick off the stragglers and blond hairs that bother you most.