Renoise is the shit.
It's far from 'long', it's probably the best software to make beats quickly, especially stuff that's largely 'on the grid' like grime, dubstep, d&b. You can make stuff in minutes on Renoise that would take like half an hour or more on other DAWs.
I think way more people would use it if they actually spent more than 10 minutes with it after downloading it. It only takes a few days to learn it really, but most people are intimidated by the interface I think, and never really delve in. Fucking instant gratification generation m8 I swear.
Anyway, not to go off topic too much but I don't really see the point in running Rebirth in 2017, you can make those sounds easily in other ways. I guess it will always be a part of grime's history but there are other ways to get distorted 808 drums lol