Well, I never experienced crashes with CB12.
It's true that I use this program only to work with my databases and this may be the only reason for this.
By the way, if someone uses two different versions of CB on one computer can expect such behaviour from the program we talk about. Both versions of CB may use some common files and therefore the user may experience some crashes.
I never install two versions of a program on one computer. For example, I have my CB11 on my PC, while CB12 happily lives on my laptop. And they both work as expected.
Anyway, I'm not telling that this is the only reason for a CB program can crash. No, not at all! Some users say that they never buy new programs right after their release. They usually wait for three to six months after the release and then buy it (obviously, when some updates were installed).
It's not an unique situation. ChessOK recently released their new version of the mighty program called Aquarium. Some users experienced problems with it, reported back.. And now this company is preparing its official update, soon to be released. As for Chessbase, we know that they did it twice with CB12 already.
And now let me say what I see, good or bad, with this CB12!
Working with databases now is slower than in CB11 (but better, they say from ChessBase). It's obvious that they prepared their new product for high-end processors like Intel 7's and greater values of RAM. It's a matter of politics these days. Higher program requirements raise the new computers sales, you know.. So, buy a new PC in order to use the new program!
And now the goodies:
"Let's check", "Cloud analysis" and "Deep position analysis" are amongst the good things you can acquire with this CB12, thus not needing the Fritz 13 GUI at all.