Love this one. I've got one labelled as speciosa but it's the same C1 clone as this one (I understand whether this clone is speciosa or tetraspis is a debated subject
).
I've not got mine to rebloom after the blooms on it when I bought it, so really hope I can. How do you grow yours, mine has sulked since I got it last summer, no new leaves or flowers, though I noticed new root growth a few weeks back.
I have read that light can make a difference to how much red you get, but it's pretty random. I read higher light gives more red but until I can get mine to bloom I can't confirm that.