diff --git a/009_inverse_Robin/robin.ipynb b/009_inverse_Robin/robin.ipynb
index 8304b54..74fa865 100644
--- a/009_inverse_Robin/robin.ipynb
+++ b/009_inverse_Robin/robin.ipynb
@@ -1425,6 +1425,13 @@
     "ax[1,1].legend(loc='best')\n",
     "ax[1,1].set_title('Samples from NUTS')"
    ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "It seems pCN, ULA, and NUTS give comparable results, whereas the mean arising from MALA deviates a bit. Note how simple it is to make use of gradient-based sampling algorithms once the custom model is specified with a gradient routine."
+   ]
   }
  ],
  "metadata": {