hi bertha, i've done my eyebrows with Amy about 5 years ago? So far, i only go to touch up once a year...Everyone has commented that my brows look very natural but the only thing i dun like is the waiting time at amy's side...Sometimes they cramp in so many ppl in one slot that you can wait up to 2 hrs before ur turn...
browhaus i have not done eyebrows there, but face threading, They are definitely professional and judging at how they tweeze my eyebrows, i believe they will do a beautiful job as well...so it all depends on whether u want a cheaper job or not...browhaus side im not sure about the technique but for amy's side (#1 salon), they used a needle like instrument to inject the colour under the surface of ur skin. Like tons of ants bite...and the eyebrows will be red for a few days, followed by flaking of skin...but after that, it will look very natural...
hope i have been of help...=p