dropped, and still ticking
I came from a Legend, so I too miss the trackball and the dedicated menu button. However, I am glad to have gone with the One S, with its aluminum unibody design. I've already dropped it twice with no case, and there are no scratches; only a small flattened point on the corner where it hit the ground hard indoor flooring. My Legend, also of a unibody design, also survived many drops. Hopefully, I won't be the one testing how it survives a faceplant or dropping on gravel.
The one issue that caused me to exchange it was call quality - there was a lot of static heard on my side. My new unit doesn't have the problem.
Other than that, it's worked quite well for me so far, and I can quite easily get 2 days of use on a single battery charge (using mostly wifi, and making the occasional voice call).