Pulsar Krypton FXG & XG - Anyone tried one?

So for a long while now i’ve been pondering over a Pulsar thermal but haven’t pulled the trigger as they didn’t quite tick all the boxes for me, and IMO at about 7k for a scope they should.
But i’ve just come across these Pulsar Kryptons https://www.pulsar-nv.com/glo/products/33/thermal-imaging-attachments/krypton/ that just clip on to any & all of your existing scopes in without any zeroing required. So for that 7k you now get a thermal on all of your rifles and can switch from normal to thermal in a matter of seconds… Hmmm i’m really liking this thing i think.
Just wondering if anyone had tried one or had any info?