I stopped watching Scandal halfway through last season because it wasn't enjoyable anymore
Just like I stopped watching Shameless (US) towards the end of Season 3. But everyone says they redeemed themselves so I have to catch up soon
Most good shows usually have rough patches, but it's super impressive when they're able to get back on track.
Same thing happened to me with Shameless. I enjoyed the show but simply stopped watching for unknown reasons. My friend persuaded me to watch the last season and it was enjoyable, it wasn't anything extraordinary but it was pretty good.
Scandal is nothing more than a glorified soap opera. You can get all of that "excitement" in General Hospital, The Young and the Restless, and the like.