I've used both.
Had conversions from Ekta, but that's not really the point of the traffic.
Might just be my experience, but Ekta's seems to come from Eastern Europe, Ghazz from Asia.
Both have a lot of Russia and China (but a lot of people live there!!!!)
Think that Ekta's is better "disguised", i.e. not showing up the same referrer lots. But it's clear by visitor behaviour that they are both sending real people, who spend time looking at sites of interest.
Ignore the "scam" comments.
It's absolutely clear what you're buying, and both the sources I have used have overdelivered.
In short, you can't go wrong using either!!!
Hell, it's only a few dollars ... go for both and see what works best for you.
@bowcot84, appreciate your kind and honest words! thanks!