I'll def PM you, because here's my current impression of Houzz:
1- for whatever reason I could never get clients to review me on Google Places, Yelp, etc., but Houzz? No problem
2- in terms of lead generation, it's neither better nor worse than other online sources. Maybe 50-50 wrt lead quality
3- as I mentioned I'm really, really struggling with the discussions. Houzz says they'll bump your ranking if you're active, but I've found very few that I'll participate in.