Has anyone a view on buying an iPhone 6 or 7?

i have been looking at iPads on wowcher and groupon, off and on, as I'd really like one but haven't taken the plunge yet. They often have a variety of iPhones on there too - might be worth a look?

I have had an I -
Phone 6 for three years I love I use it a lot havent had any problems if any problem pops up I have my Son nearby to help out. I want my I-Phone 6 to last for ever!

I bought an iPhone 8Plus last week from John Lewis and was given an extra year’s guarantee with it (3yrs total). It’s the larger size, the screen is quite big and perfect to grip too.

I had a Vodafone contract with my first mobile years ago, lost the phone but I still had to pay the outstanding year’s payments even though I had no phone. Never had once
since, have an EE SIM card and do £10 a month pay-as-you-go. All my 000s of photos are in the cloud and appear on my phone, iPad & laptop and I pay just 79p p/m for extra storage.

I love my Iphone 6 which I bought used from a shop I have often bought phones from before.

I download photos from my phone, using the flex for recharging the phone battery, directly to a USB port on my laptop, as I find this easier than uploading to a sky-drive.

I have been looking at cases/folio cases to fit the iPhone 7+ but have across complaints of muffled sound during calls. I started looking at the Torro wallet type as I wanted protection for the screen and I love my iPad Torro. However, even they have issues which they suggest is to do with the microphone collecting moisture or people folding back the cover! Then I came across other sites suggesting that Apple have problem with it on the 7. Yet on here there seems to be people who are very happy with their 7s. I am wondering what they use for protection of their valuable purchase.