I have this plugin running on my website http://growthadvance.com
After going through several plugins that would work well and then would go unsupported, I was glad to find NextGen OG+. The pro version was a bit pricey at $29.95 but frankly, I'd rather pay for a plug in and know that it is going to have professional and reliable support than continuously waste my time on free plugins that are eventually unsupported.
I am not an expert (I had no idea what Open Graph even meant before researching and downloading this plugin) and so had a learning curve with using it, but found the support to be quick and professional (two things I greatly appreciate).
I have no complaints with how this has worked on my sites and would definitely highly recommend this plugin.