Working 6 months with the Samsung Galaxy Note 4 (910F), 5 Years with Samsung

I am not a regular user / buyer. I have many smartphones and when I like a brand, i am buying everything i can from the same brand.
Until 5 years ago, I was working only with HTC. I bought 8 HTC smartphones.
And then I discovered Samsung.
From then, I bought 10 Samsung smartphones, 3 Samsung Smart TVs and more.
But my passion to Samsung started to crack, and all because of my Note 4 issues.
When I received the Note 4, it was amazing - excellent battery life, everything worked perfect.
And then came updates...
After the first update, the Note 4 started to have bluetooth issues - I need to make restart twice a day in order to work with my bluetooth headsets (even with Samsung headsets).
With more updates, the battery life dropped dramatically. After the Lollipop update, the battery is dropping 3-5% per hour, without using it. Android OS and bluetooth dropped the most.
Dont tell me to make hard reset - I made it twice.
Its time to leave Samsung and work with a company that can give me what Samsung gave me until two years ago.
Samsung will need to convince me that it improved before I will return.