Update README.md

Add HiRO strengths and weaknesses

README.md

@@ -48,7 +48,22 @@ Some known weaknesses of ACE2S are:
 - model was not tested as rigorously as ACE2-ERA5 (e.g., cannot comment on stratospheric variability, etc) 
 - overestimation of tropical cyclone generation compared to X-SHiELD
 - some aspects of the pre-training and fine-tuning methodologies did not have ablations
-- exactly pre-training and fine-tuning methodologies are subject to potential significant changes for future versions 
+- exactly pre-training and fine-tuning methodologies are subject to potential significant changes for future versions
+
+#### HiRO
+The strengths of HiRO are:
+- Quickly generates surface precipitation rates almost anywhere on the globe analogous to X-SHiELD 3 km output
+- Reproduces surface precipitation rate distribution of X-SHiELD out to the 99.99th percentile
+- Low time-mean biases against X-SHiELD
+- Recovers time-mean characteristics of precipitation related to topography
+- Stochastic for easy ensemble generation of small-scale variability
+
+Some known weaknesses of HiRO are:
+- Not expected to generalize to climates outside of the 10-year training dataset
+- Only produces precipitation features representative of X-SHiELD data, not observations
+- May not produce physically consistent precipitation features; different precipitation regimes (convective, stratiform, orographic) have not been rigorously analyzed separately
+- Does not tend to produce the strongest isolated convection over tropical ocean regions of X-SHiELD (e.g., representative of 99.9999th percentile of X-SHiELD outputs)
+- Not trained or tested outside of 66S -- 70N, and cannot run outside of 88S or 88N
 
 ## License