I'm glad you are interested, its amazing..
I went to a place in Boston. The price truly varies, however I spent 2 hours with a lovely woman who I think deserved the hefty price tag. I paided 200$ for the extensions.
I showed up and was ushered into a nice calming white room and and layed down on a waxing or massage bed. The girl who did it looked and my eyelashes and explained a little about how it works. Basically she used real human hair cut and shaped like an eyelash (J curl) and with tweezers applied one eyelash at a time with special glue. She applied one eyelash at a time to my lash line. Because my eyelashes are somewhat thick, she had to apply about 40 lashes to each eye. I wanted the length, so she added longer ones to the sides to get that flirt look. You can goggle it, because I have no pictures right now. However, i will get on that!
I have had them for about a week, they are great. I have showered and washed my face ext. You just have to be careful to not use oil biased products that will remove the glue faster than you would wish.
They will last about a month and a half, and then I can return for a touch up (20-30$) and i will be as good as new!!!
Let me know if you have anymore questions!!!!
Good luck ladies, I recommend it!