Looking at the pic of the Andrews unit in S&S, they appear to be essentially the same as most of the budget binos around, including the WO. The WO might have better EP holders, and you get a pair of EPs with it and a 1.6x corrector (to help reach focus) for $350 from Frontier Optics. I'm not sure if the Andrews one comes with a corrector. You'd need one to use it in anything other than an SCT.
Even with a corrector, you might have problems reaching focus in a refractor or Newt, and might need to use a barlow or other attachment; Cheapest one would be a barrel extender to go between the bino and the corrector lens which increases magnification and pulls the focal plane out further. Another thing that varies from brand to brand is clear aperture, which can range from 19mm to 22mm. The 22mm CA of the Burgess C unit that I have is enough to illuminate the field of 25mm plossls without any noticable vignetting (or 19mm 68 degree wide fields). But slightly smaller CA might might mean better baffling.
Note that you will not get low power views with BVers in most Newts and refractors. The longest effective EP focal length you will be able to use will be about 15mm, but more likely 13mm. (You can get low power correctors but I don't know if they work and they are not cheap.)
The Saxon unit is inferior: heavy, poor optical quality, small clear aperture.