One significant advantage of the Firefox model is the ability to bind domains to a container. I cannot open my Internet Banking in the same container as the hacking forums I might frequent, it will automatically launch in the correct container. I use Chrome personas a lot (I have 8 on the go currently) because, frankly I like Chrome more, but container URL isolation is a better implementation of workload isolation. IMHO. I'm constantly opening URLs in the wrong container because I just ctrl+T and start typing.

Actually you've inspired me to use a 'timewaster' blocking extension to prevent some URLs from loading in my main personas. Might achieve the same thing.