The good part is that the stock tips were causing them to sound a bit thick and hurting the soundstage size a bit. They also exacerbated the driver flex. While they are thicker and of seemingly decent quality, I think the R-11 get along much better with thinner, softer tips.
So, they did clear up after a tip change and seemingly some more after a night of run in.
They are quite versatile due to the gels and long sound tube. Stage size and sound balance are quite tun-able with tips and fit. Shallow will bring more clarity and balance by decreasing bass amount. You can also insert them quite deeply and shift the balance more toward the bass, adding warmth and thickness. They are capable of a good amount of seal and isolation which will bring the most bassy thick warm sound.
They sound real good for $25. A bit of metallic sheen on the treble but not offensive and it gives them a bit of sparkle/liveliness and the treble has good clarity. The treble extension is decent and the roll off is slow and smooth. Mids are quite clear and clean and well separated. Bass is fairly tight and fairly quick even when using a deeper insertion. That is the rub though. More iso and you give some bass bloat and thicken the mids and subdue the treble some. I prefer them with a more comfy, shallow fit which is easier in and out and provides a more balanced, clearer sound but retains a decent thump down low. Actually more punch than thump. The punch turns into more of a thump with a deeper tighter fit.
With the right tips, the stage size is quite impressive. Good depth/3-D, nice height and width as well. Nice equal proportion. Not there with the stock tips though, at least for me. So, that does vary with tip selection.
I have also found that a slightly slower more deliberate insertion allows them to vent the pressure so driver flex can be avoided. A bit of practice on insertion should make driver flex a non-issue that happens maybe once every so often.