I've only tried Thumbtack. Very little success on there. Only got one job from it out of 32 quotes/bids. Thankfully I made enough to cover my costs on the one job that I did land, however the time spent on the site wasn't worth it in my opinion. The system favors "pros" with the most reviews, so unless you're ready to commit a ton of time to collecting reviews on yet another site, I wouldn't use Thumbtack. I can see it's benefits, but I think you'll need to spend a lot of money to get the jobs and reviews. A good long term project if you're willing to put in the time, but just beware that the price you pay to quote is a little too high in my opinion. It's generally $21+ to bid on a wedding client which is pretty high. Especially if your market is saturated with talented and semi talented part time photographers who work part time and low ball their services.