I haven't bought LR6 but plan to shortly.
To start off I'm glad they finally added this feature! Before LR was introduced I had used Picasa's face recognition to very good success... I then began using Photoshop Elements which also had facial recognition. Yet, even though Adobe had that technology for years in Elements they never ported it over to LR until now... so while I used it with a smallish collection in the past, I now have a collection multiple times larger to deal with and want to start off on the right foot.
Looking forward to using it, I started thinking of some potential issues that may arise; and figured some former Aperture users or others with experience might have some tips or answers to questions like:
I look forward to using LR6's new features... I skipped LR5 partly due to lack of facial recognition because I felt it didn't add enough other features to warrant the purchase... so I've also got those v5 tools that will be new to me! I realize these new tools like Face Tagging don't appeal to everyone... but for me, its something I've been waiting for since using the original beta!

