looking to buy Bitdefender

I would not do it!

One reason is some inconsistencies, mainly with the version of Bitdefender Internet Security. Some parts state 2018, others 2019, images are from the 2018 version.

Being a long-time user of Bitdefender over the years they do provide some good discount, being it personalized or not. Recently, for example, I uninstalled Bitdefender temporary as a test due to some inconsistencies with Bitdefender Central and I received an email from Bitdefender with a huge discount of over 70% for total security. Sure, you do still pay some money, but it is definitely worth it in my opinion.