Ive done it in bots a few times, ive only ever played her in norms like twice (top), but from what I can tell she can survive jg OK... the shield helps and her q gets decent clears. Id assume ganking is alright considering she has 4 dashes and 2 forms of hard cc.
Jungle Riven is garbage https://media4.giphy.com/media/PrlnOajn4ZIBy/giphy.gif
Lots of champions are viable jungle What people don't realize is you ACTUALLY need to gank people and not just farm creeps for 5 hours that's what a lot of these people that say "(Insert name)" is shit jungle and needs a buff in reality its just them not understanding how jungle works sure the clear time could be slower but you STILL get the job done do you not?
More nom noms for Cho'Gath jungle?
Also!
Jungle Riven isn't garbage, it's the entire fucking dumpster :P
http://www.reactiongifs.com/r/2012/11/joey-not-even-sorry.gif
I've seen it work. And if you're capable of making it work well then I don't care what you jungle with.
Provided it isn't something like another AD on a full AD team or vice versa.
Riven is garbage. Look, a guide to Riven: