He was, for a few years, the best shot stopper in the world. A cat.
But shot stopping has three components: goal mouth coverage, reaction times and consistency.
His consistency has dropped off significantly since the mistake in the 2018 WC. He’s had issues with shot stopping consistency with several costly errors over the last two seasons.
In The other components of goalkeeping, he’s been average to below average.
Distribution: below average. At least once a match, he hits one over the sideline or hoofs it way too far or too low.
Command of defense / communication: below average. Doesn’t look to direct defensive positioning
Command of box: below average. This is well documented
Aerial command: below average. Despite his height and wingspan, he’s not great at punching the ball. Doesn’t use his body to claim balls outside the 6.
Contemporaries I’d rather have: Neuer, Oblak, Navas, Buffon (obviously, but really old now), Ter Steegen, Allison, Ederson, Donnaruma, Handanovic...
If you could get 50-75m for him, I say roll the dice with Henderson. Huge wages too.