Are you fond of the try hard pun? For me it depends on how vulnerable I'm feeling at the time - if I'm a little tired and weak then I will giggle contagiously at anything remotely humorous.
This particular variety of clematis, montana rubens, has been an absolute star for us. It grows so fast, flowers beautifully, covers magnificently and needs little attention. I love the way the buds are so round and raise their heads to open. This one is on our front verandah which is about 9 months old - the clematis about the same age - I think it took about 3 months to run up the poles and along the whole length of a 5 metre verandah.