I had the same experience when first switching to Android after a lifetime on iPhone. But after a year of really getting to use Android features it eventually became apparent Android has its own problems, and I ended up switching back to iOS. It'll seem great at first since it does things differently and improves on many aspects of where iOS fails at while it's fresh in your mind, but you'll need to spend much more t…
I have an iPhone 6S+, and it works almost flawlessly - animation is still good, very few app glitches, and even the original battery is in decent shape.
I'd like to hear how Androids from that era fare compared to iPhones from that era - because I plan on having my next phone for at least this long.