Dyson Complete Hairstylingset

I returned this product because it really doesn't work for my hair. When I curled it, it collapsed immediately. I watched all the movies that were there and I read the instructions for use, but it didn't help. I liked the style brush, but I had actually purchased it for the curls. I didn't think it was worth the €500, - and I really don't recommend this product.

Has anyone buy/tried the dyson dupe that goes around on Tiktok? How is the experience and how much did you buy it for? (because I see different prices going around)

Which products do you recommend to keep curls in straight hair for a long time?