Hmm... I wonder if v5 has some problems. I'm still on v4.2 and never had any capitalisation problems, nor anything unexpected with styles. It has always seemed to me to be very similar Word. I was never a Word fan (I came from WordPerfect) so didn't have a big investment in Word anyway. I only ever used Word when forced to by work for clients, but these days LibreOffice has good enough Word compatibility that I don't even have Word installed.
The macro thing I can see as being a problem if you have a lot of them, but I suspect it's one you are going to face with any change away from Word. You may have to put up with it as part of the cost of migration. Any change of product is going to involve some additional learning and probably some changes to your habits - this inertia is one of the things that keeps people tied to particular products even when they're not entirely happy.
These days I tend to be more conservative with my software updates. I won't be trying LO v5 until v5.1 or later. It's not as though I'm actually looking for new features, so I'm in no rush.
Long story short: I'm not able to offer much help, sorry.
