My first unit failed within a few weeks, very disappointing. I contacted support and they sent me a replacement unit. Without good support I couldn't recommend this brand, but with good support I am very happy that I bought my Anova.
I bought a new container and a lid (Rubbermaid 12 quart & an Everie silicon lid for that container) and the lid seems to be effective at stopping steam from rising up to the vent. I've been using the replacement unit regularly for a few months with no issues. I also bought a Rubbermaid 18 quart container, the same lid fits either container. The 18 quart is a better size for bigger things like an entire chicken, the 12 quart works great for smaller things like steak or sausages or a chicken breast.
This is the lid: https://www.amazon.com/gp/product/B0757ZSK9Y/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I would credit that lid with preventing further issues as it wraps around the Anova cooker and seems very effective at blocking any steam from coming up and getting into the vents at the back of the unit where the circuitry is.