My efficiency isn't all that great - low 60s I guess - I need to pay attention more the next time I brew but honestly I don't really care so much about that as much as I used to.
There is a sparge aspect of a sort, I don't recirculate during the mash, and then after I introduce the sparge water that has been heating in the kettle.
As far as heating times, I thought I had posted something to that effect but I guess not. Combing through some chat logs with a coworker from around the date that I ran the tests I found that it went from 120 to 190 in 8 minutes, and from 120 to 212 in 19 minutes total. That was just water though, but I'm not sure what difference that makes.