I wouldn't test this until Enhance says its ready. Can't really get accurate benchmarks or any testing until Enhance's changes are made.
Won't upgrade anything in production until at least a couple of months after the official enhance release. Gives time for others to run across any possible issues whether they be in Enhance or Ubuntu.
99% of the time it will be okay. However, I've learned the hard way that being quick to do major OS/Software updates for features or performance isn't worth the risk to uptime.