I got a few bags of the mesquite and a couple bags of the lump earlier this year. The lump was ok although there are a few brands I prefer. OCC, Wicked, Royal Oak, etc... The mesquite was not my favorite. I detected an off flavor, almost like burnt paper, to the butts I did with it. Also, it didnt seem to burn as hot as the other brands that I use.
Its all personal preference in the end as a buddy of mine likes it. NakedWHiz gave it an average I think. I have started buying all my charcoal at GFS. It appears they re-brand Royal Oak and I am liking the fact that they have it all the time. Unlike the big boxes here that only have charcoal until July 4th.