I bought Sweet Summer Love in 2014,. It took until 2017 to reach maturity.
The plant was in full bloom in 2017 when one side started to die. Within weeks the entire plant was dead.
It was supposed to be fragrant, but mine had no fragrance at all.
I posted a few pictures on mine when it was in full bloom showing it in all its glory before it died.
Because it had no fragrance I never even considered replacing it.
So my experience is 3 thumbs down, I would love to hear how it did for others.