Especially at that price, you can't go far wrong with the CGEM. It's a solidly built mount, and as it's been around a few years it's quirks and flaws are well documented. It should guide perfectly well with C8 on board. From a visual point of view, I prefer the Celestron hand controller software to the SW Synscan.
IMO the build quality of the Celestron mounts is just a touch above the Skywatchers. That's not to say they don't have some bits of cheap plastic, but I have an AVX that I've never been compelled to upgrade, the adjustment bolds are large and easier to use for example, whereas my workhorse EQ6 is a bit of a franken-mount at this point
of course, it's a little unreasonable but I demand more from my EQ6 because of its load carrying capacity.