Should I stay with Oreo on new XZ1C?

[pseudonym]

I will be receiving a new XZ1C in a few days, and hopefully it will be fully functional and running Android Oreo. To judge by the many problems that many have experienced after upgrading to Pie, I am wondering whether I should hold off and stay with Oreo for the time being. I would hope that Sony releases a better version of Oreo by the time it's made available to the USA. Comments?

[pseudonym]

After many updates and upgrade to Pie, and then a factory reset:

The only problems I encountered were that Chromecast frequently disconnected (unfortunate, since we often make use of it), and more importantly, it did not function reliably with my Subaru's Bluetooth. Since I need that function to be reliable for business reasons, I could not keep the phone. I will remain with my Xperia X Compact, which does not have Chromecast or Bluetooth problems.

However, the XZ1C did not demonstrate any WiFi, camera, cellular or Bluetooth problems (with connections other than the car). 

[Mehmeh]

Oreo is far superior

[SenXEK]

Well it does depend on each individual's preferences and usage. Whether we like it or not the whole world is constantly moving without any hesitation.

As in my case, I never use chromecast as I've a Rasberry Pi attached to my TV and XZ1C's Bluetooth is working perfectly with my Mazda and Nissan, so I'm quite happy having pie

[KJB01]

I asked Sony via chat. The response was RUBBISH. They ignored my asking why I had no Pie update, no security patch since September. I asked why the forum was full of complaints from those who did get the update. ABSOLUTE BYPASS OF AN ANSWER OF ANY KIND. STICK WITH OREO. BUY A BRAND WITH BACK UP. 

[Elmos]

My XZ1 after upgrade from Sony in this month still freeze. It is sad that Sony works So slow., probably Samsung would never wait that long. Anyway PIE is a Way much slower and worst than Oreo.

I was hoping taht after upgrade or some fixes it will work as i had Oreo, but No. Sony dont even want to admitt to this error.

I think this is my last celly from Sony.