does anyone use the c-lightning dual-funding / liquidity ads feature ? 
i used it when setting up the node to get some inbound liquidity, and though fiddly to use, it worked great
but now i've been advertising for a while and never got any new channels this way
https://media.x0f.org/422db3a0c90b7dff7e99d5f9ffc1e6b50df89537a22a71367045ba78e3b02c0f.png
 

 this is still one of the best articles about it
https://medium.com/blockstream/setting-up-liquidity-ads-in-c-lightning-54e4c59c091d 

 Tried dual funding many times and could never figure it out 

 yea... the learning curve is quite steep

but it's pretty cool imo, at least it's as decentralized as can be, in contrast to LSPs