Is this better than a diffuser? Does it make a difference in how well your curls set compared with a diffuser?

I can't buy a hard hood dryer because I don't have the space for it or a proper place to set it up in terms of height.

I'm cross posting this in the general section. Thanks for any responses!
2/c and some 3A.
Protein sensitive but can use occasionally
Highly porous. Color over grey.
Best 1st day method: Super Soaker
Stylers: Mix Curls in a Bottle into everything for shine. Terrible pj
Sometimes try roller sets - classic glamor but I prefer my curls.
Every day is a gift