There is a bunch of another BMSes which look almost the same. It's one of the most common design.
I personaly like this particular one. Nice and clean routing of the PCBs, SMD components, etc.. However, It's still yet another BMS with dedicated MCU on each cell with master board. I'd rather see a modular design with one board for a group of the cells, say 4 to 8. There is no such BMS available in neither commercial nor DIY market, AFAIK.