I can't say I'd noticed anything particularly untoward with the star colours, although I will take note of this the next time I'm out with it. It is "only" a doublet so maybe that contributes?
Likewise with imaging, I see a little blue haloing on brighter stars, which you can see in my images and I've not attempted to dial it out (to date). The fat stars appear to be an issue with my camera not the scope.
For a travel scope, the only real issue is weight, but I don't find it a problem. It has a decent dual speed rack and pinion focuser and while imaging I've not noticed any slippage while applying the lock. For visual, I typically use a couple of carefully chosen 1.25" eyepieces and a decent barlow, although sometimes do crazy things with big 2" eyepieces
but I've had surprisingly satisfying views of Jupiter and Saturn through it
