Yes, it was not mentionned often in the list of complaints about the fw 13 because the chassis was good enough but my main gripe was that it felt flimsy.
Strangely it was not flimsy and held its own but it felt flimsy and to be honest I never was quite able to tell why. What one want for a premium laptop is the satisfying rigidity of a Macbook and it didn't have it.
So for me this new chassis is a banger release. It's amazing that I can just drop my "old" hardware in it and it would just work.