The SigTech software WAS designed for use by a trained technician, but the Tact software was allegedly designed for the "typical" end user. Even understanding (somewhat) room acoustics, room correction philosophy and computers, I had GREAT difficulty in getting my arms around the software. I understand there are now some user groups that can help navigate some but it is still clumsy.
That said, once you get outside of the bounds of something like Audyssey, I am not familiar with any systems (time based room correction and not frequency based correction) that ARE end user friendly, but I don't pretend to know everything that is out there.
One of the original founders of Tact split off and started another company that uses similar technology but that system (as I understand it) provides no user "diddling".