Not really... I did a fair amount of research and I found a lot more negative then positive concerning this engine. I was actually online to see if the price was reasonable and that lead me to link after link of bad reports.
I liked the truck and wanted to buy it...but there were just too too many lemon reports about the 6 liter diesels.
Were all the 6 liter engines bad? No, but I wasn't bout to risk $22K on a truck with as poor a reputation.
Folks considering buying these can (and should) do their own research.
I'm happy your truck has been trouble free, but don't make a frivolous claim of me bashing when I'm reporting what the overall consensus of that engine has been. Even the two issues that you describe (egr and head bolts) can cost well over $1000 to correct... Your own words: Not doing so can cause big problems