I ordered this one as the description said it is a heavy bloomer. I like that the early bloom is double and later is single. Does anyone grow it and what is your opinion of this clematis?

I have it, like it, but it's in some shade and not a "heavy bloomer" here - not for me, as you can see.

I have mine in a pot. It blooms well here in the south . Maybe because it is small, the bloom season seems shorter too