My experience with Brioche in the bread block was disappointing. It tasted like a stick of butter. We made a couple of items from a slightly tweaked brioche recipe and I might be a convert. The rectangular Nantere bread is slightly sweet and very fluffy. A tasty application is to pull those little segments apart and make French toast out of them. Each segment is roughly a 2 inch cube. That would be a fun little breakfast treat.
The round Galette bread is about 10 inches in diameter. It is also made with brioche dough. It has Creme Chantilly in the middle. It would be a great dessert.