Has ANYONE tried one of these "cheapie" NV scopes?

Been seeing these recently on more & more sites. Just curious if anyone has any experience with these. Have a friend who wants me to do some nighttime ratting (35 yards max) & wondering if these are A) functional & B) good enough. (Check out link below)

 
i had a digital pulsar n550 it was inexpensive and I have shot yotes out beyond 75 yrds here is a clip of it in action , I sold it now i tun thermals which are pricy but way better , I know the cheap digitals with zooms have bad resolution as you increase power so using at lowest setting is only way to use them look here

;ike i said this was a cheap unit also