I know nothing about this space, but assumed there have to have been competitors. I'm sure UXRecord aren't the only ones. http://www.uxrecorder.com/

I am very surprised to see a YC W10 company with this lo-fi website, and poor marketing.

I appreciate that not everybody who goes through YC raises funds, but the video doesn't even have a voice-over describing what the viewer is seeing.

They may have had the best technology (as bartman says), but I wouldn't exactly call this 'A game' marketing material, and they had to have realised how important that is.

I hope we hear a post-mortem from the Delight.io crew.

On a side-note, I find it interesting that UXRecorder is a video capture company that doesn't have a video demo of their product.