I have several 1/6x24 scopes including the SWFA, Bushnell SMRS in SFP and FFP, and a Minox 1.2-6 which I won't compare here.
The SWFA eyebox at top mag is no smaller than the Bushnell's.
The SWFA is a lot of scope for the money, but I wish they'd saved a few $$$ in the manufacturing (passing that savings on to the consumer) and made it SFP and smaller capped turrets.. My guess is the SFP reticle donut would be smaller as the donuts current size is definitely an FFP compromise to allow it to disappear from the FOV at top mag. The turrets are nice but unnecessary, I mean, this type of scope is made to hold, not dial corrections IMHO.
The SFP Bushnell is my favorite with a reticle that works well at 1x without overpowering the great big FOV with no barrel distortion.
The SWFA matches the SFP SMRS at 1x (other than the reticle donut being too large) as the glass is clear and distortion free to the edge.
Also, the SWFA reticle is actually useful at night beyond close quarters with 5 mils of illuminated holds.
The FFP SMRS adds some barrel distortion at 60% of the FOV. The FFP SMRS reticle is too small for daylight work, since the illumination is 1/42 as bright as it is at 6.5x, so not nearly daytime bright.
Lastly, the Bushnell is 1/4 lb. lighter than the SWFA, something that does matter to me on the type of rifle I see it best used with, an AR-15.
Just my observations.