I have to admit that unit testing in C++, even with google-test, is so much more of a PITA than in python. Especially when checking string output. Simple string matching using split and regular expressions has really spoiled me.
Another thing that I've noticed is that I spend more time thinking about object design, and what should that object really be able to do, and what should it allow others to do to it.
It is an interesting time as I realise how much I still have to learn for our current domain. Most of my previous C++ experience has been on server side processing. Drawing stuff on the screen, real end user stuff, is still relatively new for me.