I have been using pedal commander for quite long time, it's very useful to control upshift and downshift by pedal only, and it brings rev up before a huge climb quickly.
I have driven almost all Toyota cars available in the region, Toyota's pedal setting is really gentle, you really have to tame it by more aggressive daily driving, and understand the tricks to up and down shift.
Few sequoia and LC 5.7 owner friends of mine are happier with their cars after using the pedal commander, without it their big 5.7's acceleration feel more or less like the v6 at streets.
@PaoloMaraziti you can give a try, some vendors they let you try before purchase, and FJ's model should be the same to Prado/LC which are common in UAE