Water based epoxies

Has anyone worked with or tested the new water based epoxies? I'm using a Haymes 1:1 product to re-encapsulated windows that were constructed 20 years ago with West System (well worth the effort back then). The water based stuff is beautiful to use and super easy to clean up, and most importantly there's no need for killer thinners/cleaners. What are your objective thoughts? Harry Tams