I have had my TBMBP for approximately 2 months now and I am certain that the machine has improved with regular use in the following areas: 1. Keyboard - When I first got my machine I was almost alarmed at the high pitched sound of the keys and the space bar felt less snappy but now they sound deeper (more in line with the 2015 model) and there is uniformity of action across all the keys. I would say this transformation took some 3 weeks of moderate/heavy typing and I can confirm that it is not merely my typing technique that has changed as even if I go heavy on the keys they do not sound/feel as they used to. 2. Screen hinge - the hinge made a tapping sound and wobbled slightly if I was typing away rapidly. This totally vanished after 2-3 weeks. I wonder if the hinge was just screwed in too tight. 3. TP - it creaked slightly when starting up from cold. This stopped after a week or so of use. I note that my 2015 MBP had this issue when I first got it. 4. Ports - the ports felt overly stiff when connecting/disconnecting. Now they feel effortless without feeling loose. This took about a month of normal daily of connection the charger, my SSD and other peripherals. Does anyone else have a similar experience? I consider that it is worth allowing your machine a decent break-in period for as long as your exchange period will allow before making decisions as to whether you want to keep it (hardware failures notwithstanding). People seem to be on a merry go round of swaps looking for the right machine when they may have had it all along. WWHG.