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I’ve used both the starsense and ASIAIR pro on various mounts. I can tell you they both have their merits:
Starsense:
Extremely accurate with alt-az mounts especially with extra align points or a 2nd calibration run. Great for visual and can land any target within the field of view at high magnification (250-300x no probs). Not quite as accurate for a GEM but still ok if you do accurate pa. It works with any focal length as it is independent of the ota so no need to swap out camera/ eyepiece if you going visual.
ASIAIR pro
Absolutely magnificent for AP or EAA - it’s an all in one solution and very user friendly. The platesolving is great and will centre the target, or you can tap on screen to re-orientate. No need for accurate pa for visual observation with a GEM cause it’ll just re-solve if the first attempt is off. 2 problems- it’s gets more and more inconsistent as focal length goes up and I’ve had trouble platesolving for planetary imaging at 3500mm and up, especially if using small fov camera. Alt-Az mounts will need an alignment first before it will work. If your alignment is good then it kind of defeats the purpose if strictly visual. Might need a second piggyback guidescope or a flip mirror if doing visual.
As I said I have and use both but if had to choose one, I’d choose the ASIAIR pro as it is a lot more versatile and gives the option for EAA even if you’re more into visual observation.
Anyways - just some of my thoughts…
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