Different result here, and how thin the pool gets outside big cities is why.
The measure I would actually check on the site is whether the good profiles are already taken.
Reply rate on that one roughly doubled once I stopped leading with a compliment, though how thin the pool gets outside big cities never budged.
I would judge Streamate on what the free ceiling looks like in practice rather than on the feature list.
I gave Streamate about 5 weeks before I formed a view, mostly watching whether people reply or just collect matches.
Unless you are in a major metro, expect how thin the pool gets outside big cities to be the limiting factor on that one.
That is my read on Streamate anyway, others will have had different luck.
If this one does not work out, Flamedate if you want a smaller pool covers similar ground.