Anyone tried Lensbaby Spark before

[ahboyboy]

Hi guys,
i did a search here, and couldn't found any review about Lensbaby Spark?
Anyone you this Lensbaby Spark before? Either on your FF camera or DX camera?.
just kind of interested if it, but couldn't find any user to review. so i hope i could get some review here. thanks!

 

[HighTone]

After seeing it, I thought it is similar or the same as the Muse? just cheaper. I don't have a spark, but I got a composer pro