First blooms can be deceptive. It's certainly an impressive performance for a 4-month-old cutting.
My Nahema is four years old now and has never produced a single bloom, but it's an own-root rose and I have trouble growing own-root roses unless they're OGRs or landscape shrubs. It's growing, however, and is now about 4 feet tall, so I'll just be patient and wait for blooms.
Chippendale is intriguing. I like rose bushes that carry blooms of different colors all at the same time. Also, it's the name of one of my cats.
Palatine is supposed to be carrying more Tantau roses this year, so Chippendale may be among them, I hope.