I agree. I built my first mini itx case for my living room PC and while I look at it now and thought it was fun, it was a headache to put together at the time. I bought a Fractal Design Ridge and if you wanted to change something, you essentially have to take the whole thing apart. I love how it looks though.
I’m a little conflicted if I like mini ITX or micro ATX better. I used a micro ATX for my media server and thought it was a little too roomy for my needs but is SO much easier to build with.