Then buy the 2015 design, as it's tried, tested & proven. Latest coolest Mac is near useless "if" it has design issues, as with past events all Apple will do at best is extend the warranty on the parts concerned, and just replace them until it goes away with the same flawed design.
Just sit it out for now. By December you should be able to make a more informed decision one way or the other. If negative posts continue to roll in, and not by the same disgruntled individuals in significant numbers then like as not issue is factual. Be warned the dongle situation can be a non event or a massive PIA depending on your use.
Sadly Apple's arrogance and lack of concern for it's customers beyond their spending power forbids any official explanation, that much is certain...
- Keyboard - Fair chance issue exits, and getting better or worse by the day
- Cracking Display - More posts than previous, don't see any significant trend
- USB C Ports - Some loose ones out there, dongles can and are problematic depending in circumstance/usage scenario
- WiFi - Most Mac's are poor in comparison to similar specified PC's. Apple will always point the finger elsewhere, equally with enough hardware on hand it's pretty obvious to see where the fault lies, same applies to Bluetooth
Q-6