I recently purchased one of these units and I think, for the money, its a very solid piece of gear. Not in the league of the Zeiss, but its 1/10 the price ($400 vs $4000). It is right there with the Leupold however and again at a nice price savings. Overall I would recommend it.
Pros:
love the rails - got my Vectronix -10 mounted up top, see picture attached. Very useful, one stop spotting and ranging station
turrets are great, super smooth, very easy to move/focus/change magnification w/o impacting the sight picture
small size - very mobile given its small footprint in a pack
Durable - nice coating, rugged... I'm adding the Triad Tactical cover to improve the durability, especially inside the back pack (
https://www.triadtactical.com/Triad-Bushnell-Tactical-Spotting-Scope-Cover.html )
reticle is useful but not overwhelming the observation value
Cons:
reticle does have some 'etching fuzz' on it. Not huge.
glass isn't 'wow' good (its hardly 'crappy' bad either, overall its 'better than most' good)
edge clarity isn't great
sight picture is sensitive to head position