I have not.....
but I will say that I really don't believe it's something "worrisome," as you suggest.

What is your relationship status now?

Just a Mercury retro recommends we become mindful (lest we forget details like where we put the keys or the last time the car was serviced) I believe Venus gives us the opportunity to reflect inward about our relationships and value. It's going to help us "revisit" these things during the retrograde period- and that doesn't mean that it has to be bad, or scary.

As far as it landing in your 7th, I'd suggest you reflect on your values, how you relate to youself, and how you feel about and express your inner passions. Once we're clear with ourselves it can help us be more compassionate with others (7th house).

I'd like to hear about your experience with Venus rx as it unfolds.....

Venus doesn't retrograde until March 2009.