Absolutely Great!
I use the board with a CB1 in my large custom 3D printer (7 axes and 1 extruder) and I am very satisfied.
The installation is very easy, the instructions are sufficiently described - even if I initially forgot the jumpers for the driver voltage ;-).
All jumpers are included separately and are not already installed like in other models (I also use 3 Octopus Pro boards, 1xV1.0 and 2xV1.1 in other printers).
Unfortunately, only the I2C port is not in the "generic-bigtreetech-manta-m8p-V2_0.cfg" (https://github.com/bigtreetech/Manta-M8P/blob/master/V2.0/Firmware/generic- bigtreetech-manta-m8p-V2_0.cfg). The instructions and documentation still need to be refined here.
Together with a TFT35-SPI one of the best combinations!
Everything can be completely adapted to your own needs and used flexibly. The system is fast and responsive, and the connection is very stable.
I would be very happy to have matching heat sinks - in the cool BTT style - for the board and the CB1. Unfortunately, there aren't any, so I installed my own coolers and fans. The CB1 remains very stable at around 32 to 38°C and the STM32H723 usually stays below 35°C, so my installed 24V fans can run at 12V and are therefore very quiet.
In summary, the Manta M8P V2.0 - or its smaller brothers - can be highly recommended for an upgrade or a new printer build!
So far, I haven't had one of over 12 different BIGTREETECH boards that disappointed me!
Bigtreetech boards are highly recommended!
Attached are some pictures of my installation and test setup before the board was finally installed in the printer.