First of all I apologize for my English.
I was reading some posts and threads, particularly relating to bookmarks. Personally I could understand the choice of developers to delete the typical bookmarks in favor of speed dial (if it's seen as a new version/view of them), but in this case there MUST BE a tool to import and manage the old bookmarks in newer version of Opera.
However, I think that the bookmarks are just one of more and more problems in these latest versions: obviously I'm not referring to the problems of navigation in itself, but in the last 10 (and more) years I've chose Opera for its excellent U.I. and the ability to customize maybe everything, two things that I missed in the latest versions!!
Over the years I have never been disappointed by the new versions, especially from the point of view of the new features: speed dial and tab-grouping (and many other features) have become indispensable in my daily use both at work and at home, but I think that from version 20 there was a big step back.
I do not know if this forum is read by developers or by the management, but I hope that in the next versions, Opera return to be Opera and not a bad copy of Chrome or Firefox