Initial tests looked great! Genymotion-based VMs run faster or on par with similar AVD images with HXAM support. It also doesn't suffer from the RAM limit (768MB). With controls on all the sensors (GPS, cams, accelerametor, etc.) Genymotion VMs have, it looks like a superior emulator for Android devs.
Genymotion is still x86 based, like the Atom images that come with AVD. As such it's not for "realistic" testing of ARM targets. Since it's also uses VTx for acceleration, I noticed once Genymotion is running, any HXAM powered AVD images cannot run at the same time.