I've been a dedicated Opera user for 13 years since Version 5 (with the bloated shareware ad & ICQ). I've supported and backed every move and every year I've had people tell me I'm completely insane to continue using it.
I understand moving to the Blink engine (somewhat) and I'm especially grateful for having a separate email client now which quickly imported my 70,000 emails. But I'll never understand releasing a browser that doesn't cater to the vast majority of its users, the veteran Opera users. Relying on 3rd party extensions for bookmark importing and offering a less than ideal product out of box than any competitor is a major step back. Opera is (was) the inventor, the guinea pig we can rely on for new features, options and ideas that competitors can only copy.
This could have been avoided by just releasing this as an Opera 'Lite' version while continuing with Presto until a proper browser was ready for public release. I'm disappointed, but thanks for the email client, that's all I need to move on for now with Chrome until you get it sorted out.