One additional note on the time to boil. It all depends on the wiring and if you are using an extension cord.
I was able to do a complete brew with a 90 minute mash in 3.5 hours (granted my strike water was preheated when I started).
My home has 20 amp breakers and I do not use an extension cord. However, I have had a boil over in the past even using an extension cord.