My experience with RO in the WSM is it works kinda okay but doesn't light well off of adjacent coals like KBB does especially in snakes.
For high heat it works very well, I use it in my performer all the time and prefer it over KBB because of the lack of the obnoxious white smoke that KBB gives off at the start.
Also RO doesn't seem to last as long as KBB, but if your just grilling burgers, steaks, chicken it will last longer than you will need.