TESC is not a degree factory as others have stated my wife completed her B.S. through them. She is a straight A student graduated top of her class in X-ray school with a class full of 4.0 students due to competitive entry, and she struggled with TESC classes. You recieve NO credit for core classes all your traditional classes must still be completed as with any B.S.
That being said a Eng Tech degree MAY or MAY NOT lead to gainful employment. I believe it is a great option for us working folk, for leading into a Masters which is what I am doing.
Even highly regarded schools requires very little for prereqs for a M.S. usually only recomending auditing a couple courses to be familiar with certain concepts. So does a B.S. in Social Science from Harvard somehow show greater nuclear knowlege than a prior enlisted Nuke with a NET degree from Thomas Edisson? I don't think so and obviously neither matter to most highly regarded colleges with M.S. programs in Nuclear Engineering.
Hell you can complete a M.S. from GA Tech in Mech Eng completely online and no one could tell you did from the paper work. And this is the school constantly making breakthroughs in Nano, Nuclear, Solar, etc...
I am much more wary of the schools that charge 35k+ a year with empty promises of great jobs when you get done, than the working mans Tech degree with more practical hands on schooling. If I saw a work history at the same time as earning a degree I would hire that person first with all else being equal.