One large basket that splits into two independently controlled zones — used daily by owners with zero complaints. America's Test Kitchen also endorses the Instant Pot Vortex line.
The VersaZone's single-basket-that-divides design is genuinely clever — you get full capacity flexibility or split cooking without buying two machines.
“Instant Vortex Versazone. Had it since Christmas, use it daily and can't fault it. One big basket that you can divide in two and control independently”