What's the favorite/surdiest sff case you ever had ?

Hello,

During last decade i tried and used a fair amount of small cases but i ended up only keeping/going back to my Ncase M1 or Dan cases A4, those two really felt like tanks, the kind of cases i wouldnt be scared to carry everywhere, scratch, even drop or disassemble/reassemble a million times. Imo they were also really no bullshit super simple cases with good QC.

Im basically searching for something similar, smth SUPER sturdy with good quality control, preferably under/around 15L (riserless is a bonus), simple with minimal bells and whistles : i dont even need a front io, so honestly i dont mind smth that cant do everything in term of compatibility but rather do one or two things well enough.

Im gonna retire my Ncase M1 for the next build so ig im on the hunt for its replacement.

Im naturally drawn toward a ncase M2 but im not sure im the biggest fan of those very thin mesh panels, same for the formd T1 but then again i never saw those in person so idk.

So what would be your pick ? What's your current favorite case ? What case made you go "alright im keeping that one until it fall apart" ?

Thanks