Rumor has it the Venere line is going away, so I assume the Chameleon is the replacement plan. I had the Venere 2.5s in my system on extended loan, and from reviews and customer feedback I've read the Chameleons seem very similar in sound and build quality. For those who haven't heard these newer and cheaper SF offerings, they are NOT woven from the same cloth as their more expensive siblings. In fact, they're completely different to the point where if you like one you probably won't take to the other.
My experience with the Venere 2.5s was very mixed. While they did a good job from the mids on up (at least for my tastes), they lacked lower bass dynamics and appear to have tried to mitigate that by boosting the upper bass. In this region they sounded bloated and out of balance, and no amount of placement experimentation got rid of it. Some of it I'm sure was due to the very thin and light cabinet that resonated quite readily at moderate to higher listening levels. Further, build quality was below par and one of the holes for the spikes was stripped on delivery. I noticed in one of the reviews the Chameleons had a problem with spikes too, which doesn't bode well for build quality of the new model.
So to me this speaker speaker seems like a similar product to the Venere with different clothes but with the same mission of appealing to younger generations with a lower price and a brighter sound. More traditional and expensive SF speakers are NOT bright sounding, and if anything lean toward the more polite or laid back side of the sonic spectrum. Having heard the Grand Pianos I can tell you they sound nothing like the Veneres and likely not the Chameleons either. So given that you seem to like the more detailed presentation of the Chameleon I'd recommend looking to another brand in this price range.
Some that I'd consider if buying new in this price range would be Silverline Prelude Plus, Revel M36, Monitor Audio Silver 300, or the Ascend Acoustics Sierra Tower (sold direct with in-home demo possible -- a big plus and fantastic speakers). All of these will have superior build quality and will also likely sound better balanced and just better overall than the cheaper offerings from Sonus Faber. Sorry if I'm a buzzkill here, but just relaying my honest experience and thoughts. Hope it helps and best of luck in your search.