I've only beent to Rue d'Aarschot, not the other place, since I didn't have time to check out the rest of the venues. Most of the girls look fantastic in the windows, but in case you would like to bring some color into your life, beware: the black ladies will offer a lower rate (30 eur), but will often give an awful service. They don't even take off their bras (since for sucking and fucking - what's usually agreed - they technically don't have to take it off, or if you want it off, it'll be another 20 eur. They also determine when the time is up, and if they're tired of you, they'll just say, time is up after 7-8 minutes; ususally the exact time whether you have managed to really start enjoying your hard-on.