Xentryx,
There is a steep learning curve to learn the T4 Framework; however, once you learn it, I'm sure you will be satisfied.
I'd rather be 'wasting" my time learning how to use T4; rather than, wasting time repairing a crashed website after every update like with my previous template.
With my previous website template, it took them 5 months to fix one issue even after another developer confirmed the bug and provided the code to fix the issue. I have other bugs that were reported since Alpha that have not been fixed. I could go on and on; but, won't.
Also, it appears that support here is closed during the weekend; so, I save bug reports or issues until today: Monday.
As you know, currently all developers are updating their products from J3 to J4 right now; so, it is understandable that there will be bugs.