What kind of problems?
I am using Safari as my main browser and its working flawlessly for me.
Loading a webpage and the progress bar stop at around 15% position...... forever.
Micro freeze the whole computer (except mouse pointer) for every seconds. (This is 100% reproducible on some webpages)
Sometimes start up in a second, but sometimes takes 30s.
I basically only use Safari since 10.5 (Leopard), and it works very well until 10.9.5. But now, I must give it up until they fix it.
Since all modern browser including Safari use GPU to accelerate, and there are few other 7950 users have exactly the same problem as mine. So, it seems that graphic card driver plays an important position on how Safari works. For me and some others, it's totally unusable now, but for some others, it works flawlessly. IMO, it's a kinda of hit or miss, not good enough for a daily use computer's OS.