Yeah, I have a Continuum, a Slim70. After three years with it, it made me liquidate all my hardware synths, and I'm still not tempted to go back at all. I was so skeptical about FLUX that I'd decided definitely not to buy one after trying it out for 2 hours at a trade show. There were only earbuds available, and that early model had some glitches to boot. Most of all, what's the use of FLUX when you can play the same monophonic lines on the Continuum? The difference with Continuum turns out to be much greater control over nuances of tone because Continuum requires additional pedals to get closer to the same number of dimensions of control, and I really don't like using pedals with my Continuum because of the way it restricts my physical position (a personal quirk). I've actually been calculating liquidating the Continuum, I like the FLUX so much as an instrument to devote myself to. You can't beat polyphony, though, and I find many, many EaganMatrix patches just fantastic out of the box so that I think it's unlikely given, say, a year's perspective that I'll still be willing to part with the Continuum.
I was also very skeptical of FLUX's "bows," thinking that they add a degree of cumbersomeness that I really would not want to deal with (drops, misplacings, etc.). To my great surprise--and I was expecting to dump the FLUX within a week--those magnetic bows turn out to be a non-factor. It's difficult to drop them, and they're just effortlessly secure in your hands. It's convenient to stick them on and pluck them off the microphone stand, and you can easily wiggle knobs and punch buttons on other gear without changing the bows' position in your hands.
Another dealbreaker with FLUX was going to be the poor posture required to play it, with your body constantly hunched over because your eyes can't leave the keyboard (like Continuum). Personally, I'm sensitive to this. I've found though, that standing play allows (even requires) enough body re-positioning that, so far, I haven't been subject to the repetitive stress types of issues that I'm personally prone to. That could change, and I'll quit the thing on a dime at the first twinge of tendinitis because I've personally learned that lesson.
Onboard reverb? Synth enthusiasts debate fiercely over this, one side believing that outboard FX are always far more desirable, so synths shouldn't increase their costs by providing unwanted onboard FX. It's a moot point with me since I got the category-killing Axe-FX III, so at the cost of an inconvenient space hog and a lot of money, I can emulate any FX that I've ever owned well enough. I've thought for gigging, though, the FLUX is so wonderfully transportable (Continuum not so much), that I'd hate to ruin that by purchasing a small reverb unit, but I think I would have to because I just can't warm up to FLUX's reverb.