"Performance was outstanding with the iPhone 6s, and it's even better with the iPhone 7. Both phones have a more RAM and double the storage capacity (finally!) for the same price, and nothing touches the experience of A10 Fusion SoC and iOS for general tasks. Yes, the headphone support has changed (notice I don't say it has been removed) from a dedicated jack on the bottom of the phone to a pack-in dongle, but all existing 3.5mm headphones still work just fine. Only having one Lightning port does mean charging and listening simultaneously now requires a 3rd-party adapter, so if this is something you often need, I think last year’s 6s models would be a better choice at their new lower prices."
You do software updates to get the most from favourite programs right? Updating a motherboard BIOS can in a timely manner is also critical. The guide to Flashing a Motherboard BIOS spells out the often complicated steps in plain english. PCSTATS Tips