I tried a couple bags of RO Hardwood Lump, but have returned to using KBB.
The RO Lump lights easily and burns clean, but I was unable to regulate the heat as well as I can with KBB. The burn rate of RO, at least to me, appeared to be less consistent and often faster than KBB. This may be the result of inconsistent lump size, too -- obviously KBB is very consistent, whereas the RO had some tiny lumps and some lumps that were nearly entire branches. The dustiness was a downside, too -- more black smudges everywhere.
The smokes I did over RO tasted a little cleaner than KBB, but for me it wasn't enough better to make up for the problems I ran into.
I'll admit that it's possible that the results I got were more due to something I did than due to the charcoal but, until someone can show me where I went wrong or I can figure it out, that's where my review lands.
Pros - Clean, perfect thin blue smoke, very consistent burning
Cons - Have to read the bag - insist on America Made
I cannot think of a single complaint on this 100% natural hardwood lump charcoal ...burns hot if you want it too, but you can choke down the vents and make it simmer along with a very low temperature in your BBQ without going out either. Perfect thin blue smoke, all natural American hardwoods... BUT rumor has it (so says some web sites) that there are 3 different types of red-bag Royal Oak 100% All Natural Hardwood Lump Charcoals on the market ...and maybe this is old info, but to get the best one, look for the "Made in America" label on the bag. I get mine at the Home Depot and it not only says "Made in America" but also has an American flag on the front of the bag (near the top) - not shown above BTW. The American Made version has no South American hardwoods (known for more difficulty in burning, more inconsistent) in it and is made from all North American hardwoods that burn smooth and long, very consistent and reliable.