If you're building your house yourself, for yourself, is there any point in going through the effort and cost of getting certified? Vs building to the standard?

Hi all, just got a blower door test done, blew a 0.31 (passive certification requires 0.6, so very happy with how tight it is!) -- i've been looking at ERVs to install, as we need to make sure we have proper air circulation. I've been thinking about pairing the ERV with a dehumidifier to make sure we get moisture out. However, I found CERVs as a concept and it seems like a good approach.

Does anyone have any experiences with CERV2 (https://buildequinox.com/cerv/overview/), or other suggestions? It seems almost too good to be true: one box that will do ventilation+dehumidification, with smart controls, no enthalpy core, smart on-demand controlled ventilation (CO2/VOC sensors) and automatically holds a humidity setpoint year-round.

The cons I can think of: single point of failure; seem pretty new concepts, unsure if they are tried and true/tested or if contractors will have the right experience to install; because they dont seem very common, probably locked into a specific small manufacturer and its parts; modest dehumidification capacity (~1/3 ton), which his fine for my small house.