Not so much
Guest shopper SL hit the Hanro sale today. Here's her take on the event:

Hanro sample sale? Sucks. Only old lady nightgowns, most of
which are ugly and/or shrunken and ungiftable even to moms and aunts. 
Didn't really go through the bras and panties, but was told by others
at the sale that those, too, sucked.

In summary, don't waste your time (unless, of course, you like old lady nightgowns).