I have been using Opera as my primary browser on my computer, I Phone, IPAD, etc for over 1 year now. I love the look and feel of it and love the fact it has built in sync to sync your bookmarks and data across different computers and platforms. I also love the fast rendering and well laid out interface. With that said, none of that matters if you hit website incompatibilities constantly. I am not trying to slam Opera as I think it is a great browser but it's almost impossible to use consistently when you hit roadblock after roadblock with compatibility issues.
For example, I went to a software vendor's website today and typed in a very long inquiry via a web form and get to the bottom of the form and the CAPCHA code doesn't show up properly. I load the page with Firefox and IE and the code shows up. This is a constant occurrence.It just costs more time than it saves unfortunately.
Besides the incompatibility, the thing crashes constantly. I see people denying this problem until they are blue in the face but the fact is that Opera has a stability problem. You can sit here and blame it on people's computers all day but the fact is I have 2 workstations and 3 laptops all with either Windows 8 or Windows 10 and it the browser crashes all the time on every machine. It also crashes consistently on my IPhone and IPad when it hits specific websites.
It also sometimes just refuses to respond. When I boot up my systems and load Opera, I can try to open a web page after I start Windows and sometimes have to wait 1 to 2 minutes for Opera to even render the page and other browsers load the pages right away. Something is hanging Opera up after boot. This happens on all my machines on different networks in different offices. And yes, it happens with Turbo on or off.
I really truly like the look and feel of Opera as it is very well designed and has some very unique features I love but I cannot continue to ignore the issues documented above as they simply cost too much of my time working around them every day. I am sure some people are going to respond and slam me and others will find other reasons such as a problem with my machines or blame it on my network, etc. but the fact is these are real world issues reported by many people on this forum and other places.
I am writing this post not to slam Opera but to document my experiences in the hope it will help the Opera team address problems from a real world user. If these issues can be fixed, it will be the only browser I would use across all my devices.