I definitely do look at that. I look at my own recently added to make sure I add everything to my This Week In Books Posts. When I run over 17-18 books a week I gotta make sure I get them all! I think it only shows that many.
I also enjoy looking at friends and similar libraries recently added. I often click on the ones that look interesting, usually the ones with cute covers! It's a fun way to learn about new books! I actually see a lot of comics coming through the recently added which I love!
One thing that looks interesting right now is The Burma Chronicles, which our lovely Tuesday Thingers host, Marie recently added! I keep seeing this one around but know nothing about it so I'll probably click it!
The last book I added myself was the short stories collection called Let It Snow by three young adult authors. I also received two other books yesterday but I'll save them for my This Week In Books post at the end of the week :D
How about yourself, do you use this feature?