I've grilled twice with the RO all natural hardwood briquettes. So far, so good. Easy to light, not too much ash, seem to burn pretty hot - my steaks cooked quicker than I expected. The briquettes are a tad larger than most, seem to last awhile though I haven't tried smoking with them yet.
In case you're interested:
http://www.doitbest.com/Charcoal+and...sku-838136.dib