Alex and Phil from SUS did a comparison of the SUS Cedar/Mahogany, SUS Mango, and Koa Kanile'a.
https://www.youtube.com/watch?v=fQFB2JXLM3I
Alex wrote in the comments:
For me the Cedar uke records best and responds in a more dynamic way to various different string types and playing styles.
The Manako mango uke is more complex. When playing with other people it does a great job of filling out the missing frequencies and although the single note parts don't cut through or project in the mix as much; it's got it going on.
The Koa one sounds polished and traditional. A more gifted player than me would get more out of it on stage but at home it's got one of the most inspiring sounds...