I hesitate to review bras, as they run as differently as our bodies do!!  I have done a huge search for a strapless model mainly to wear during the summer with certain tops and dresses.  I ordered two sizes to compare, but both slid down even on the tightest hook.  I wanted one with a slight padding, this had too much for me, but I did want a bit more than the unlined stretch lace one i own, as i am slender and wanted more oommph,if you know what i mean!!
So, back to my unlined stretch lace, which i love, but the only reason it stays put, it really does, is due to the rubber gripping all around...a great holding feature, which irritates my skin, very itchy after wearing, but will have to endure til a better bra comes along!!!