I give 5 stars for the 3 days delivery! However, as it's a review about the product itself, I gave 3 stars as the chairs are defective as you can see from the photos. They are deformed, so it doesn't look straight. The sewing is uneven from one side to another as well, and the chairs are very very light. It does not worth €82.50. I'm glad that I bought only 2! Giving 3 stars for the legs which are steady and easy to assemble. 
I bought 4 nice chairs that cost €80 each here in wayfair - Vassar Upholstered Dining Chair by Corrigan Studio - heavy, comfy and steady chairs, no regret.