Denali's blooms are beautiful. Very large with great form. Unfortunately, most of the time, the blooms nod. But, the few times when they stand straight, they make a perfect cut flower.
I grew one bush of this rose for one year. I loved the huge pure white blooms with good form, no scent, on a big healthy vigorous bush. Unfortunately it survived it's first winter and was breaking dormancy well when we had a rogue late freezing spell of 12 degree weather for about four days. I lost this rose as well as about 50 more! However, this is one that I will replace eventually as I really liked it and liked what other rosarians had to say about it in Horizon Roses.