freaky - I had the trial version on my pc for about 5 minutes, purely to compare it with version 8.5. As you are probably aware an extended trial (6 months)of Bitdefender 8.5 was offered by PCA recently. My trial lasted about 1 month - the av seems competent but I suspected a conflict with other software as my pc crashed twice during the av update process. Why do you ask?
I asked because the reviews I have read here and elsewhere were very positive - as a result I was considering getting it. I have two PC's on a network and was offered version 9.5 for approx' £45 for a licence covering the two via a USA website.