It being Americanized is fine. The blatant copying of Sherlock is what annoys me. I enjoy seeing new spins on Holmes. I love House, I love the RDJ interpretation, I loved Monk (more inspired by Holmes then a direct interpretation), but this is quite clearly copying Sherlock because Sherlock is doing well. And it is somewhat annoying. Especially since I have very little faith it can do the Modern Holmes interpretation as well as Sherlock.
So basically, why would I want to watch a show with the same concept as another, if there's already a show that's currently running that will probably be better?
Now, if they decide to add their own element to it, that's fine. I personally hope that they try something different from Sherlock.