Obviously any one person's experience is only anecdotal, but I'm still waiting to discover that anyone I know in real life actually likes iOS since v7. However, I seem to know plenty of people who wish they hadn't upgraded, or even who returned a new iPad with a recent iOS because they thought they were getting what they'd seen before (iOS 5/6 generation tablets that friends/family had) and hated the new one so much.

Personally, we're still pre-v7 on our iPad here, after reading way too many reviews about severe performance drops on this device after the "upgrade" and learning that there is no way to go back once you've done it. We literally ignore any updates for the system from Apple and just carry on happily enjoying the product as we bought it, making us almost uniquely satisfied among iPad purchasers we know.