Short answer = No
Longer answer = As I'm sure you can appreciate it is pretty hard to work out the wheat from the chaff in the wonderful world of rebreathers. Especially on the net.
I'll put this out there; I know of KISS, PRISM, YBOD, EVO, CIS and Mk series divers that now dive the Meg. I havent heard of any Meg owners who have sold their unit to get something else. I'm sure they exist but there are a hell of a lot of experienced CCR divers who have changed to the Meg.
And now I'll crack open a Coopers Sparkling Ale and enjoy the tales of wonder

I concur. The more I dive this unit, the more I love it. The modular nature of the unit lends itself to almost any diving situation + the service is top-notch.