hi! I saw you purchased the Konftec laser. Can you please (if it's not too much trouble) post a link where you found this? Also, I have been reading reviews online and they are not good? Do you know why? Does Konftec have lasers that do, and don't work (depending on which one that is purchased)? Also, what are your thoughts on this one compared to Dr. Wilden's/other more expensive lasers. Thank you!!