Have used TS for quite some time after moving up from IS, so far it's not bad but I think there are a lot of unnecessary features that they could remove and make it a cleaner interface. I still very much prefer IS over TS. So far I have not encountered any false positives, I like the good detection ratio but I don't quite like that their heuristics require the internet as well, it should be built into the product itself. It's basically a dummy against zero day when there's no internet.
Avira and Bitdefender engines are alright but not fantastic because the engines only cover their virus definitions and not heuristics. I still find that TS is very lacking of some other AVs out there and relies to much on the cloud to detect rather than giving more virus definitions to use offline.
Also one thing I really really hate about it is that they only give updates to their various engines twice a day. This of course only applies to the Bitdefender and Avira engines only because as I have said their other engines run off the cloud and only can detect threats when connected to the internet.
Honestly I really miss Avast on my system, it was really easy to use and the protection was also consistent unlike TS where some times it will decide to detect the file and other times it decides not to. Also Avast was really great at giving update throughout the day.
